Beavers stand back to back and try to push each other over using their bum.
To start Beavers get into partner groups and stand back to back. The partners should be approximately the same height and weight for the best results.
On the count of 3 both Beavers try to push each other off balance by using only their bum. The first Beaver to move his/her feet loses. Either have another round or challenge some one else.