Traditionally given to represent unity or comradery within an organization or group, challenge coins have a long history – believed to date back to World War I – among military members as a way to honor service. Today, they remain popular among military, first responders and other organizations, and are often sought after as prized collector items. Littleton Coin Company offers a wide assortment of challenge coins for sale, from military challenge coins to first responder challenge coins, plus other fun and festive varieties. We also carry cool challenge coins in unique shapes, like our exclusive 3D Super Hornet challenge coin. Browse these and more in both singles and sets in a range of presentations.