Re-use those Gatorade bottle caps! These are containers that use 20oz Gatorade bottle caps (the similar Powerade bottle caps work too). The small size is the minimal size to allow use with these bottle caps. Two larger sizes are also available that have a total height 2x and 3x the small one.

Great for small parts organization or carrying small items in a bag or pocket. Basic print settings should work, no support or brim needed.