Exercise 1:
Static form: From the shoulder-width boxing position, bounce a tennis ball (in a hoop) with one hand, keeping the other hand on your temple at all times. Change which hand is bouncing the tennis ball from time to time.
Exercise 2:
Dynamic form: Move the tennis ball between the rings (bouncing on the feet) without touching them.
Exercise 3:
On a command from the instructor ("top"), swap the tennis ball with a partner.
Exercise 4:
At the instructor's command ("top"), try to steal another participant's tennis ball without losing your own ball.
Exercise 5:
All against all (elimination match): whoever loses their ball is eliminated (possibly perform additional tasks).