About this 3D model

Here's what I did for the contest, it's a shopping cart token with a smiley smile that every person uses to use a cart to go shopping, the token is very fast to do in 7 minutes or so that can serve as a test piece that is usable just exit of the printer with its fastener for keyring, the token is the diameter and the thickness of a piece of 1 euro LIFEHACK3D