Hoop pass
Passing the medicine ball back and forth with a partner is fun, but we can do better. Designate one person as the "hoop master" and pass the ball back and forth through a hula hoop.
The trick lies in the erratic, unpredictable movements of the hoop master. Instead of just holding the hoop in a single position, move it up and down, forward and back. This keeps the passers guessing and constantly adjusting. A clever hoop master can keep people moving all around the play area. Keep passing until fatigue sets in, then rotate for new passers and a new hoop master.
Here's a QuickTime clip. It's a bit slow to load, but it will give you the idea.
