All you need for this game is two shot-glasses, two quarters, and at least four people. The two shot glasses are seperated among the people so they are not next to each other. The objection of the game is to bounce a quarter off the table and into the shot-glass. Once you get the quarter into the shot glass you pass it on to the person on your left, and they do the same thing. If someone cant get their quarter into shot-glass before the other shot glass catches up to them, they have to take a shot. The catch is if someone makes their quarter in on their first try they can pass the shot-glass to anyone they want at the table, usually the person to the right of the other person with the shot glass. this speeds up the game, and gets everyone smashed.
(Thanks Ben!)