Butter Tray
thingiverse
A holder that fits a variety of lung capacity testing devices. This will hold/fit the yocan plus XL, the yocan evolve, the yocan armor, and the utilian 5...and probably a lot of other ones as they all are based on certain battery packs. It also has a spot for a butter knife. May or may not be useful as an actual butter tray.
Download Model from thingiverse
With this file you will be able to print Butter Tray with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Butter Tray.