Each coaster in this 20-piece collection features detailed instructions on a different drinking game, from common chug competitions like Boat Races, to a mathematical memory game called Frogs, to Wibbly Wobbly, the British version of Dizzy Bat, since apparently Brits are so proper they use coasters outside.

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Pull one at random for a surprising way to get totally wrecked, available at Vat19.com