Roman Butin is a Russian artist who modifies coins with elaborate hand-engraved designs of his own. His latest creation is a coin with a beating heart. Here is the tiny mechanism in action…you turn the gear at the bottom of the coin and the heart beats!
Wow. You can check out the heart coin, a Banksy coin, this trap coin, a golden bug coin with working wings, and more of his work on Instagram. Heads or Tales has replicas of a few of Butin’s creations for sale.