A Moscow Mule in a can - (The Copper Can) is how the 2 Bootleggers got their start bootlegging. After sharing it with over 5,200 retailers in the USA and seeing how popular their secret formula had become - they were inspired to use the same secret recipe ginger beer/lime juice combination - with their favorite liquor-bourbon. A Kentucky Mule is one of the bootleggers favorite cocktails and he make/orders them everywhere he goes.