Quarter (US) Saver

I often don't carry cash or coins anymore (like many of us). One grocery store I frequent wants you to deposit a US quarter to use a shopping cart. I tried other 3d models and they didn't seem to work well or fell out of the cart. I decided to try my hand at making what seemed like a simple model.The uploaded file is version 2, which has a larger key ring hole and a ridge around the keyring hole to lessen wear from rubbing on a key ring.