Display the mini filament spools found here: from [https://makerworld.com/en/models/209262-5g-mini-spool-filament-swatch-gridfinity#profileId-229173](https://makerworld.com/en/models/209262-5g-mini-spool-filament-swatch-gridfinity#profileId-229173)

This shelf will hold 21 spools printed from the profile linked above. I just press fit the shelf together; you can use glue on the joints for extra security, but I have not needed glue. Included is one photo of the shelf next to a pen so you can see the approximate size of the complete shelf.