Flowing Friendship | The Paper Mouse x Opus 88 Mini Fountain Pen

A small restock of the Flowing Friendship pen is expected mid to late January, followed by a larger restock in spring 2026. Please keep an eye on our newsletter and social media for restock announcements!

Sail 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.

This 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. 

• Compatible with specialty and replacement nibs
• Comes with an Opus 88 branded nib in the selected size
• Uses bottled ink only
• Comes in a gift box with a glass eyedropper
• Includes a matching exclusive postcard
• 4.7" when closed
• 4.3" when uncapped
• 5.5" with cap posted