Participants of Coasters need a plentiful supply of coasters and beer. The coasters should be the cheap cardboard ones found in most bars. The game is played right at the bar or on a table. It begins with one coaster placed at the edge of the table. The object is to flick the coaster, with a finger, in the air and catch it, with the same hand, before it hits the table.
Each round gives participants one chance to flip and catch the coaster(s). Those who cannot catch it have to drink the amount of coasters that were caught by the previous player. Play starts with one coaster and increases by one each round.