Description Soft enamel zinc alloy coins have a textured look and feel because the outline of your design is raised and the soft enamel-colors recessed. Zinc alloy is the-best metal base for coins requiring detailed, cut-out designs and a larger surface area. It is also the most affordable metal base. We offer any enamel-color in the entire Pantone-color chart up to 4-free-colors to ensure an accurate-color match in creating your custom design.