There are many examples of traditions that build camaraderie in the military, but few are as well-respected as the practice of carrying a challenge coin—a small medallion or token that signifies a person is a member of an organization. Even though challenge coins have broken into the civilian population, they’re still a bit of a mystery for those outside the armed forces.
What Do Challenge Coins Look Like?
Typically, challenge coins are around 1.5 to 2 inches in diameter, and about 1/10-inch thick, but the styles and sizes vary wildly—some even come in unusual shapes like shields, pentagons, arrowheads, and dog tags.