Fratline designs and crafts the finest Challenge Coins in the industry with NO Art, Set-up or Die Charges! Our minimum order is only 100 pieces per design. Challenge Coins became popular for recognition purposes in the United States Military. Now, Challenge coins are used by First Responders, Fraternal organizations and business for many different purposes. The standard size has become 1-3/4" diameter for round Coins but several different size and shape options are available, limited only by your imagination. Send us an email for more information.