#cupsanddowns is a game where one team tries to turn all the cups upside down and the other team tries to turn them right side up. At the end of the time, whoever has the most their way wins. Simple, inexpensive game that could bring a lot of energy.
It's Called Pantyhose Bowling The idea is to knock down all of your waterbottles in a line before your opponent. The trick is that the ball you are using is in a ladies' stocking.... and that stocking is on your head.