Shop for Dining & Entertainment at The Home Depot. Old Dutch's famous Moscow Mule Mug, now pre-engraved "Happy Anniversary.", for is constructed of solid copper with nickel lining and solid brass accents. The mug of choice when serving the Moscow Mule--a refreshing cocktail made from a blend of vodka, ginger beer, and lime juice. Protective resilient lacquer that resists tarnishing for lasting beauty and luster.