Hit a person(s) with a "pinball"
One or two large balls
All but one stand in a circle, facing outwards. Spread your legs as wide as comfortable, until your feet are touching your neighbors' on both sides. Everyone bends down and swings their arms between their legs--these are the flippers. One person stands in the middle. A ball is released and the flippers try to hit the person in the middle. A variation is to use several balls and more people in the center if the group is very large.