I think it would be pretty cool to have your own challenge coins created. If you are not familiar with a challenge coin, it's a small coin or medallion that is made for various organizations bearing the insignia or emblem and is given to its members to carry. Usually the coins are seen in the military, but many organizations have them made. Normally the companies that make these charge for a die mold and then they charge per coin made. The pricing varies depending upon what company you use, but its a good promotional tool as well. So it maybe another way to promote your business, it something to look into if you want another unique idea.