Drinking Game: Quarters
Set an empty shot glass on a table. One player tries to get a quarter into the glass by bouncing it off the table. If it goes in, the other player takes a drink, and the shooter goes again.
Whenever a quarter misses the glass, the other player becomes the shooter. No one has to drink in that case.
If you want to make the game easier, especially after several drinks, use a cup or mug instead of the shot glass.