A 3D printed desk organizer can be exactly the size and shape your desk needs, which is why desk accessories are a favorite on Pinterest. Here are seven ideas from Etsy shops, from simple pen holders to a modular locker set, plus a few desk pieces that are just for fun.
3D Printed Desk Organizers
Minimalist Pen Holder (STL)

A minimalist pen and pencil holder sold as an STL file for your own printer. The file is for personal use; the designer offers a commercial license separately.
See the Minimalist Pen Holder (STL) on Etsy
Flex Locker Modular Set

A modular desk system styled like classic American lockers, with options like a desk lamp, a piggy bank and pen holders.
See the Flex Locker Modular Set on Etsy
Bacteriophage Pen Holder

A science-themed pen holder shaped like a bacteriophage. It’s hollow, so it can hold pens or a small plant.
See the Bacteriophage Pen Holder on Etsy
Wingspan Board Game Organizer

Not a desk piece, but the same idea for a game box: an insert for Wingspan that fits sleeved cards and several expansions.
See the Wingspan Board Game Organizer on Etsy
Fun 3D Printed Desk Accessories
Dumpster Fire Perpetual Calendar

A double-sided spinning calendar with the Dumpster Fire character, for anyone whose week feels a bit chaotic.
See the Dumpster Fire Perpetual Calendar on Etsy
Desk Goose

A goose with a printed feather texture and a grassy base, made for a desk or a shelf.
Personalized Book Display Stand

An adjustable stand for books up to 2.5 inches thick, with a custom plate like ‘Current Read’ or ‘Next Read’.
See the Personalized Book Display Stand on Etsy
Ideas for a Tidy 3D Printed Desk Setup
Start with what’s actually on your desk: pens, cables, a phone, notes. Then pick one organizer per job rather than one big box. Modular sets like the Flex Locker let you add pieces later. If you have a printer, an STL file like the minimalist pen holder is the cheapest way to start.