Image from Magellan's

Do you really want to be that guy bringing your own shot glass?

Perfect, because here’s a transportable, collapsable 1.7-ounce shot glass made of food-grade stainless steel for $16, though Magellan’s is currently sold out. It comes with a key ring, metal cover, pleather travel case and a carabiner clip to keep it on you at all times — not to mention to keep it very, very classy.