A challenge coin is a small coin or medallion, bearing an organization’s insignia or emblem and carried by the organization’s members. Traditionally, they are given to prove membership when challenged and to enhance morale.
The 238th Marine Corps Birthday Ball was a great success and the Canteen Cups were a big hit. I'm told they are suitable for both coffee and whiskey alike. Thanks again for the outstanding service throughout the entire process and I look forward to a repeat of this experience again next ball season.