Coin Card

The coins fit nicely and are super easy to 3D print.
But not all coins will fit nicely. Some are too small, primarily outdated ones.
It fits perfectly in the wallet, purse, pocket, or drawer. 
When you want to use the coins, just pop them out, and they are ready to go.
Also, just to clarify, this is super portable.
Files for all coins in .stl files

Design by coolcoder on MakerWorld (license: BY-ND).