My parents asked for a small coin holder they could mount on the wall. Designed for euro coins and holds 10 coins. The slots are as long as a 2 euro coin (the biggest) and as wide as a 50 cent coin (the widest). My print gripped the coins somewhat firm... so maybe a 101 or 102% scaled version is a bit nicer in use.
Printer Brand:
Wanhao
Printer:
Wanhao Duplicator i3 Plus
Rafts:
Doesn't Matter
Supports:
No
Resolution:
0.2
Infill:
15%
Notes:
I printed this in silver PLA at 0.2 layer height with about 10 - 20% infill.
Print with screw hole down. Since this model is small don't rush it - no support is needed.