This was an experiment in designing a hinge and snap on very small box. It ended up being an SD Card holder. Handy protection for SD Card in your pocket. Probably not that useful, but it turned out the hinge worked well. Print two of the provided part and snap together.

Printed with Atomic Filament Natural PLA at 200C / Bed 55C / 50 micron layers on Prusa i3 MKII. I also printed at 200 microns and the hinge didn't turn out nearly as clean. The 50 micron parts had smooth operating hinge. The closure snap is solid.