Arduino UNO case, made to protect Arduino UNO boards, works with Generic "UNO" boards. This case could be held together with printed 3mm pins, I designed it to take magnets in the lid, the exact magnets I use are from "Magnetixs" toys. If you're needing a specific case or modification let me know and ill tweak the design.

I put standoffs in the bottom of the case to screw the board down; after printing I didn't have to screw it down as tension held it in place good enough for my application.