Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3354002.

Inspired by Victory Points life counter (thing:1548577), I designed my version to use the American Penny as his used Euros. And I sized it to match a Magic the Gathering Card. Meaning you can have this be your divider in the your deck box and never have to worry about forgetting your life counter or toss a few spares in with your tokens. They fit snugly in most card sleeves meaning you can store it with the pennies and not worry about them falling out randomly.

Edit- Revised version is slightly smaller making it fit easier into any spare sleeves you have to transport, and has indentions to help tell what number the coin is at.