A keychain adition to always carry some coins with yourself handy.

It holds up to 2 x 1€ and 2 x 0.50€ (at least one is needed since it keeps coins inside holder)

Update 1/6/15: Added a v2 with narrower inside and more rigid body, just in case your plastic is too flexible to keep coins inside.

Update 7/6/15: Added a lock piece to close the container if your plastic still keeps letting coins scape (mine did until today ^_^)