PiCoin - Cryptocurrency

This is my first model of the PiCoin.

Please leave feedback and share your makes.

I've made four versions so far:

-single sided: probably best for FDM -double sided -single sided with hole for a keyring -double sided with hole for a keyring

PiCoin is a new upcoming cryptocurrency. Check out their website to become a part of this amazing project: https://minepi.com/