Vodka Pong (20 Cups + 5 balls)

How to play vodka pong?
Vodka pong is played with two teams throwing a table tennis ball into one of  the cups of the other team's. 6 or 10 cups per team.
When a cup is thrown out, the player of that team must drink a pre-arranged amount of liquor (e.g. a shot of vodka 😀) and then remove that cup from the game.
A team loses when they runs out of cups