It's Not A Moscow Mule Without The Copper Mug!
1/2 Oz Lime Juice
2 Oz Your Favorite Vodka (Tito's)
4-6 Oz Ginger Beer
Squeeze lime juice into your Moscow Mule Copper Mug, drop in the spent shell, add a couple of ice cubes, pour in your vodka, fill with cold ginger beer, drink up!