GREENTOUCH CRAFTS Moscow Mule Vodka Drinkware Copper Mugs Set of 2 Unique copper mugs for serving Moscow mule vodka to your friends and family! Handcrafted , these copper mugs are not only very functional; they are also objet de décor for your home bar. The mug is hand-hammered to give it a aesthetic effect. The Moscow Mule is almost always served in a copper mug. The popularity of this way to serve the drink was due to Martin, John G. Martin, president of G.F. Heublein Brothers Inc. of Hartford, who went around the US to sell Smirnoff vodka and popularize the Moscow Mule. Martin asked bartenders to pose with a speciality copper mug and a bottle of Smirnoff vodka and photographed a polaroid picture of them. He took two photos, leaving one with the bartender for display. The other photo would be put into a collection and would be used as proof to the next bar that Martin visited of the popularity of the Moscow Mule. The popularity of serving the Moscow Mule in a copper mug has carried through to present day, primarily due to tradition and aesthetic reasons.