Outside of not having ping-pong balls for a round of beer pong, not having enough shot glasses (or any at all) is the most common drinking problem we have encountered (followed closely by peeing in hampers). With this Collapsible Shot Glass, not only will you always be prepared for a quick spur-of-the-moment toast, but you’ll also have a handy little cup on you for any occasion that calls for it (like swigging some water and Aspirin the morning after the drinking). It comes with a carabiner clip for attachment, a metal cover and a faux-leather carrying case. Nothing says “I have a problem” like carrying around your own shot glass . . . but we’re okay with that.