Mayor Ashton Hayward now carries a challenge coin bearing the seal of the City of Pensacola. For a military town like Pensacola that are fitting. A challenge coin is a medallion that bears an organization’s insignia or emblem and carried by the organization’s members. They are given to prove membership when challenged and to enhance morale.
Ask a retired marine officer and he might have a challenge coin in his wallet. They are collected by service members.
Air Force training instructors award an Airman’s coin to new enlisted personnel upon completion of their United States Air Force Basic Military Training and to new officers upon completion of their Air Force Officer Training School.