MakerCoin

I created this maker coin to have a physical object to carry around that would remind me of a quote my father often says, which is "Attack the Hills," meaning: don't shy away from obstacles in your path, but rather attack them with a positive attitude. The coin was created to have a 6 centimeter in diameter and a 1.25 centimeter thickness. The bottom had to be a flat bottom that would require no supports, and the center of the coin slopes downwards in a concave fashion.

Further Constraints:

Must be gear-esque in nature.
No moving parts