Custom hard enamel coins are the second most popular style of custom challenge coin, after Custom Soft Enamel Coins. The differences are outlined in greater detail here. Hard enamel coins are desirable for their smooth finish and professional look. If you are looking for custom challenge coins with no minimum order this is a great option as you can order a sample (1) before placing a full order. These are custom metal coins as the base metal is iron and the color comes from the enamel that is filled in after the custom mold has been stamped. You can customize a coin in a with a variety of plating options and a virtually unlimited color palette. Customizing challenge coins is easier than ever. Just submit your design during checkout or email us your artwork. Our team of experienced artist will help create a custom challenge coin for you that exceeds your expectations.