A Navy Challenge Coin is a small, usually round, coin-like object that is given to members of the Navy as a token of appreciation or recognition for their service or achievement. Challenge coins have a long-standing tradition in the military and are often used to boost morale and foster camaraderie among service members. Navy Challenge Coins typically feature the Navy emblem or insignia on one side and a unique design or message on the other side. They are often carried by sailors and can be presented as a symbol of pride, accomplishment, or as a memento of a specific event or deployment.