Customized Barware, Sherpani Copper Plated Moscow Mule Mug - Stainless Steel & Barrel Design, 14 oz. copper plated stainless steel mug is perfect for creating your own Moscow Mules. Shaped to look and feel like an authentic beer or whiskey barrel. Vintage look and feel fits great in any bar, restaurant, or home collection. Copper mug is great to take onto camping or hiking trips. ... #CPMUG03 $13.10/each.