Solid Copper Mugs Moscow Mule Mug with No Inner Linings, Pure Copper, Riveted Handles, 16 oz (2) Unlined 16 Oz Pure Copper Mugs. Made from Solid Copper. Moscow Mule Copper Mugs with no Plating, Lining or Food Lacquering. Tested FDA Compliant. Leak Proof and Durable Riveted Handles, for that classical look. Hand Crafted and Hand Made. Ideal for Cold Beverages.