You will need some prunes for this.
Have the kids stand in a circle and place one hand on the shoulder to the right. Then they have to lift one leg. When you say “Flush” they have to take one jump to the right. They cannot stand on two legs. Whoever falls is out and has to eat a prune. As the group grows smaller the circle moves to the center. It’s hysterical. And yes, mildly unsettling.