{"title":"The Paper Mouse x OPUS 88","description":"","products":[{"product_id":"moonlit-voyage-the-paper-mouse-x-opus-88-mini-fountain-pen","title":"Moonlit Voyage | The Paper Mouse x Opus 88 Mini Fountain Pen","description":"\u003cp class=\"p1\"\u003e\u003cem style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e\u003cstrong\u003eThis pen will restock periodically. Please sign up for restock notifications to be alerted when it does.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cem style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e\u003cstrong\u003ePlease keep an eye on our \u003ca href=\"\/pages\/the-paper-mouse-x-opus-88-fountain-pen-faq\" rel=\"noopener\" target=\"_blank\"\u003epen FAQ\u003c\/a\u003e, social media, or newsletters for updates.\u003c\/strong\u003e\u003c\/em\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eTake a magical trip through a dreamy night seascape with our Paper Mouse and Bear friends. We partnered with OPUS 88 to design a fanciful mini pen inspired by the illustration from our \u003ca href=\"https:\/\/www.studiopatron.mom\/collections\/made-by-the-paper-mouse\/collab-nakabayashi\"\u003eFly Me to the Moon\u003c\/a\u003e Logical Prime notebooks. Follow the Mouse on its trusty paper airplane through the moonlit sky around the pen’s cap. Below on the pen barrel, the Bear ventures on the ocean waves in an origami boat.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThis mini pen is made of smooth resin with metal accents, and the screw-on cap can be posted to extend the pen's length. The pen barrel is a transparent blue color to match the night scene and offers a large ink capacity, thanks to the eyedropper filling system. The shutoff valve inside helps prevent leaking. Unscrew the blind cap at the end of the pen when you're writing to allow ink to flow, and tighten it up when you're traveling to shut off the ink supply. \u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/www.studiopatron.mom\/collections\/the-paper-mouse-x-opus-88-nibs\" target=\"_blank\"\u003eCompatible with specialty and replacement nibs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eComes with an Opus 88 branded nib in the selected size\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eUses bottled ink only\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eComes in a gift box with a glass eyedropper\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eIncludes a matching exclusive postcard\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e4.7\" when closed\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e4.3\" when uncapped\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e5.5\" with cap posted\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"The Paper Mouse","offers":[{"title":"Extra Fine","offer_id":47824067363045,"sku":"4710484647382","price":100.0,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":47824067264741,"sku":"4710484647399","price":100.0,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":47824067297509,"sku":"4710484647405","price":100.0,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":47824067395813,"sku":"4710484647412","price":100.0,"currency_code":"USD","in_stock":false},{"title":"1.4mm Stub","offer_id":47824067330277,"sku":"4710484647429","price":100.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/9354\/files\/IMG_4247_2.jpg?v=1762908321"},{"product_id":"flowing-friendship-the-paper-mouse-x-opus-88-mini-fountain-pen","title":"Flowing Friendship | The Paper Mouse x Opus 88 Mini Fountain Pen","description":"\u003cp class=\"p1\"\u003eSail peacefully through the blooming lotus flowers with the Paper Mouse and Bear friends on their golden origami boat. We partnered with OPUS 88 to design a fountain pen that pays tribute to lasting friendships. The cap displays lotus flowers and little pond animals on flowing water. The Mouse and Bear sail together on the translucent green barrel through a forest of lotus flowers.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThis mini pen is made of smooth resin with metal accents, and the screw-on cap can be posted to extend the pen's length. The pen barrel is a translucent green color to match the nature scene and offers a large ink capacity, thanks to the eyedropper filling system. The shutoff valve inside helps prevent leaking. Unscrew the blind cap at the end of the pen when you're writing to allow ink to flow, and tighten it up when you're traveling to shut off the ink supply. \u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/www.studiopatron.mom\/collections\/the-paper-mouse-x-opus-88-nibs\" target=\"_blank\"\u003eCompatible with specialty and replacement nibs\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eComes with an Opus 88 branded nib in the selected size\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eUses bottled ink only\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eComes in a gift box with a glass eyedropper\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eIncludes a matching exclusive postcard\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e4.7\" when closed\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e4.3\" when uncapped\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e5.5\" with cap posted\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"The Paper Mouse","offers":[{"title":"Extra Fine","offer_id":47824107864293,"sku":"4710484647535","price":100.0,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":47824107897061,"sku":"4710484647542","price":100.0,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":47824107929829,"sku":"4710484647559","price":100.0,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":47824107962597,"sku":"4710484647566","price":100.0,"currency_code":"USD","in_stock":false},{"title":"1.4mm Stub","offer_id":47824107995365,"sku":"4710484647573","price":100.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/9354\/files\/IMG_4250.jpg?v=1762908502"},{"product_id":"2026-calendar-card","title":"2026 Calendar Card","description":"\u003cp\u003eKeep the date straight with our 2026 at-a-glance Calendar Card! This year's double-sided calendar features two illustrations based on the designs of our Moonlit Voyage and Flowing Friendship fountain pens.\u003c\/p\u003e\n\u003cp\u003eEach online and in-store order comes with one free calendar card while supplies last. Additional copies can be purchased.\u003c\/p\u003e\n\u003cp\u003eUpdate 2\/27\/26: we are now out of free calendar cards. Only a limited number are available for purchase.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5\" x 7\"\u003c\/li\u003e\n\u003cli\u003eHigh quality matte cardstock\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"The Paper Mouse","offers":[{"title":"Default Title","offer_id":47985111695589,"sku":null,"price":3.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/9354\/files\/2026_cal_both.jpg?v=1761681757"},{"product_id":"the-paper-mouse-5-replacement-nib","title":"The Paper Mouse #5 Fountain Pen Nib","description":"\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cem\u003e\u003cstrong\u003ePlease keep an eye on our \u003ca rel=\"noopener\" href=\"\/pages\/the-paper-mouse-x-opus-88-fountain-pen-faq\" target=\"_blank\"\u003epen FAQ\u003c\/a\u003e, social media, or newsletters for restock updates.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eGive your pen a Paper Mouse upgrade with a \u003c\/span\u003e#5 JoWo nib tuned by nibmeister, Kirk Speer. Each nib is engraved with The Paper Mouse logo and is adjusted for optimal performance.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEach nib is inspected and tuned by Kirk Speer of Pen Realm\u003c\/li\u003e\n\u003cli\u003eCustom engraved with The Paper Mouse logo\u003c\/li\u003e\n\u003cli\u003eStainless steel #5 Jowo nib unit\u003c\/li\u003e\n\u003cli\u003eCompatible with The Paper Mouse x Opus 88 Fountain Pens and other pens that use a #5 Jowo nib.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"The Paper Mouse","offers":[{"title":"Extra Fine","offer_id":48025498648805,"sku":"TPM2725001","price":30.0,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":48025498681573,"sku":"TPM2725002","price":30.0,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":48025498714341,"sku":"TPM2725003","price":30.0,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":48025498747109,"sku":"TPM2725004","price":30.0,"currency_code":"USD","in_stock":false},{"title":"Stub 1.1","offer_id":48025498779877,"sku":"TPM2725005","price":30.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/9354\/files\/IMG_4205.jpg?v=1762907792"},{"product_id":"moonlit-voyage-pen-vinyl-sticker","title":"Moonlit Voyage Pen | Vinyl Sticker","description":"\u003cp\u003eAdorn your laptop, notebook, or phone case with an adorable sticker! Vinyl stickers are glossy, durable stickers with colors that won’t fade or crack.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eApprox. 4.5\" x 1\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProducts from The Paper Mouse feature artwork and designs by our own talented staff!\u003c\/p\u003e","brand":"The Paper Mouse","offers":[{"title":"Default Title","offer_id":48033611514085,"sku":null,"price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/9354\/files\/IMG_4241.jpg?v=1762907706"},{"product_id":"flowing-friendship-pen-vinyl-sticker","title":"Flowing Friendship Pen | Vinyl Sticker","description":"\u003cp\u003eAdorn your laptop, notebook, or phone case with an adorable sticker! Vinyl stickers are glossy, durable stickers with colors that won’t fade or crack.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eApprox. 4.5\" x 1\"\u003cmeta charset=\"utf-8\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProducts from The Paper Mouse feature artwork and designs by our own talented staff!\u003c\/p\u003e","brand":"The Paper Mouse","offers":[{"title":"Default Title","offer_id":48033633665253,"sku":null,"price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/9354\/files\/IMG_4242.jpg?v=1762907542"},{"product_id":"kirk-speer-x-the-paper-mouse-specialty-5-fountain-pen-nib","title":"Kirk Speer x The Paper Mouse Specialty #5 Fountain Pen Nib","description":"\u003cp class=\"p2\"\u003e\u003cem\u003e\u003cstrong\u003eSpecialty nibs will be restocked periodically. Orders from the May 2026 preorder are currently being shipped.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cem\u003e\u003cstrong\u003ePlease keep an eye on our \u003ca rel=\"noopener\" href=\"\/pages\/the-paper-mouse-x-opus-88-fountain-pen-faq\" target=\"_blank\"\u003epen FAQ\u003c\/a\u003e, social media, or newsletters for restock updates.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eEnhance your writing with a specialty #5 JoWo nib ground by nibmeister Kirk Speer. Each nib is engraved with The Paper Mouse logo and has special characteristics to accommodate different writing styles. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eCursive Smooth Italic: \u003c\/strong\u003eThe slightly rounded rectangular shape of this nib allows your pen to glide more smoothly on the page while adding a pleasant amount of line variation to everyday print or cursive writing.\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cstrong\u003eFude\u003c\/strong\u003e: A favorite for drawing and calligraphy, the upward bend of this nib can create a variety of line widths. Depending on the writing angle of the pen, this nib makes thin to extra thick lines —it’s like having multiple nibs in one.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cstrong\u003ePosting\u003c\/strong\u003e: The unique downward curved shape of this nib allows for super fine, crisp lines and a smoother writing experience. This nib is finer than the typical extra fine nib and is great for small writing, detailed drawing, and papers that might cause fountain pen ink to feather.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEach nib is inspected and tuned by Kirk Speer of Pen Realm\u003c\/li\u003e\n\u003cli\u003eCustom engraved with The Paper Mouse logo\u003c\/li\u003e\n\u003cli\u003eStainless steel #5 JoWo nib unit\u003c\/li\u003e\n\u003cli\u003eCompatible with The Paper Mouse x Opus 88 Fountain Pens and other pens that use a #5 JoWo nib\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"The Paper Mouse","offers":[{"title":"Cursive Smooth Italic","offer_id":48034982035685,"sku":"TPM2725006","price":90.0,"currency_code":"USD","in_stock":false},{"title":"Fude","offer_id":48034982068453,"sku":"TPM2725007","price":90.0,"currency_code":"USD","in_stock":false},{"title":"Posting","offer_id":48034982101221,"sku":"TPM2725008","price":90.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/9354\/files\/IMG_4189-2_f520ab27-0347-4a3a-b853-3e0677780692.jpg?v=1762907331"},{"product_id":"moonlit-voyage-washi-tape","title":"Moonlit Voyage | Washi Tape","description":"\u003cp\u003eTwo friends on a nighttime voyage across starry skies. The Moonlit Voyage washi tape design pairs with our 10th anniversary Opus 88 fountain pens.\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eWashi tape is a decorative paper masking tape that comes in a plethora of designs and colors. It can be removed from paper without tearing and leaves no residue. Easily cut or torn, it can be used to decorate journals, cards, gifts, and craft projects of all kinds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e10 meters of tape\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e30mm wide\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eProducts from The Paper Mouse feature artwork and designs by our own talented staff!\u003c\/span\u003e\u003c\/p\u003e","brand":"The Paper Mouse","offers":[{"title":"Default Title","offer_id":48046615494885,"sku":"TPM1230101","price":7.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/9354\/files\/1230101_a.jpg?v=1763085453"},{"product_id":"flowing-friendship-washi-tape","title":"Flowing Friendship | Washi Tape","description":"\u003cp\u003eTwo friends sailing through lotus blossoms in smooth waters. The Flowing Friendship washi tape design pairs with our 10th anniversary Opus 88 fountain pens.\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eWashi tape is a decorative paper masking tape that comes in a plethora of designs and colors. It can be removed from paper without tearing and leaves no residue. Easily cut or torn, it can be used to decorate journals, cards, gifts, and craft projects of all kinds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e10 meters of tape\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e30mm wide\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eProducts from The Paper Mouse feature artwork and designs by our own talented staff!\u003c\/span\u003e\u003c\/p\u003e","brand":"The Paper Mouse","offers":[{"title":"Default Title","offer_id":48052746846437,"sku":"TPM1230110","price":7.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/9354\/files\/1230110_a_7c8711a9-0af9-4579-aef3-7714c8547301.jpg?v=1763085468"},{"product_id":"early-bird-moonlit-voyage-ink-bottle-vinyl-sticker","title":"[EARLY BIRD] Moonlit Voyage Ink Bottle | Vinyl Sticker","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cem\u003e\u003cstrong\u003ePreorder now. Available in mid-July.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eAdorn your laptop, notebook, or phone case with an adorable sticker! Vinyl stickers are glossy, durable stickers with colors that won’t fade or crack.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eApprox. 1.4\" x 2.75\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProducts from The Paper Mouse feature artwork and designs by our own talented staff!\u003c\/p\u003e","brand":"The Paper Mouse","offers":[{"title":"Default Title","offer_id":49533359980773,"sku":null,"price":4.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/9354\/files\/IMG_1876_914c6a6c-42d0-489c-82df-38f352f1fe7b.jpg?v=1781451649"},{"product_id":"early-bird-flowing-friendship-ink-bottle-vinyl-sticker","title":"[EARLY BIRD] Flowing Friendship Ink Bottle | Vinyl Sticker","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cem\u003e\u003cstrong\u003ePreorder now. Available in mid-July.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eAdorn your laptop, notebook, or phone case with an adorable sticker! Vinyl stickers are glossy, durable stickers with colors that won’t fade or crack.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eApprox. 1.4\" x 2.75\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProducts from The Paper Mouse feature artwork and designs by our own talented staff!\u003c\/p\u003e","brand":"The Paper Mouse","offers":[{"title":"Default Title","offer_id":49533360668901,"sku":null,"price":4.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/9354\/files\/IMG_1877_8d5e63b1-4c61-45b7-926f-daf72bf512a1.jpg?v=1781451626"},{"product_id":"early-bird-the-paper-mouse-s-cozy-nook-ink-bottle-vinyl-sticker","title":"[EARLY BIRD] The Paper Mouse’s Cozy Nook Ink Bottle | Vinyl Sticker","description":"\u003cp\u003e\u003cem\u003e\u003cstrong\u003ePreorder now. Available in mid-July.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eAdorn your laptop, notebook, or phone case with an adorable sticker! Vinyl stickers are glossy, durable stickers with colors that won’t fade or crack.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eApprox. 1.4\" x 2.75\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProducts from The Paper Mouse feature artwork and designs by our own talented staff!\u003c\/p\u003e","brand":"The Paper Mouse","offers":[{"title":"Default Title","offer_id":49533361029349,"sku":null,"price":4.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/9354\/files\/IMG_1881_73f44836-cf51-4eeb-b201-dcdef3fda151.jpg?v=1781470369"}],"url":"https:\/\/www.studiopatron.mom\/collections\/the-paper-mouse-x-opus-88.oembed","provider":"The Paper Mouse","version":"1.0","type":"link"}