Holiday entertaining has a certain aesthetic this year–and it’s a copper Moscow Mule mug. For whatever reason, the copper mugs, a trademark for the Moscow Mule cocktail, are all the rage this year–just in time for all the excessive drinking and gift-giving of the holiday season. Grab a set for yourself, invite a few friends over and make a batch of Moscow Mules (the recipe is quite simple: vodka, ginger beer, and lime), or buy a set for someone you know who loves entertaining. The copper keeps the Mule chill and fresh, and don’t forget to garnish the cocktail with a sprint of mint and take a photo for Instagram. Now you’re a regular Martha Stewart!