It's the Pits Mixer

Materials:
1 grapefruit-sized Nerf ball per team

Directions:
Divide the group into equal teams. Give each team a Nerf ball. On "GO", each member of the team passes the ball from armpit to armpit without the assistance of hands. If the ball is dropped or touched by a team member’s hand, the team starts over again. The first team to pass the ball successfully to each member and then back is the winner.

Variations:
Can also be played with actual grapefruit or water balloons!

Crap Throw Mixer

Materials:
tape, bunch of stuff - newspaper, socks, toilet paper, stuffed animals, balloons, etc.

Directions:
Divide the room into four sections by putting tape on the floor. The object is to get all of the stuff out of your section and into the other team’s section. Play until something breaks or one team clears their section.