Looking for a fun new way to do a stiff shot of booze followed by a chaser? Just pour your chaser of choice (juice, energy drinks, soda, beer, etc.) in the bottom bubble of one of these cool new Quaffers, then your favorite shot of alcohol in the top bubble, and notice how they float on top of each other and stay separated. Now chug them both down. Voila! These innovative layered double-bubble shot glasses are available in either glass or plastic, are perfect for downing all your favorite shot concoctions, and sure to be a hit at parties. Great for serving at bars too. Check out this VIDEO to see them in action.