Break into 2 teams of 12 (or divide the class in half). One team must mark themselves somehow e.g. by wearing a sash therefore you will have sashes against non-sashes. Using a soccer ball the teams must try to pass the ball between themselves 7 times. If the ball touches the ground it goes to the team that did not drop it. If it goes outside the parameters of the court it goes to the team that did not let it get out. To increase the difficulty of the game use different balls e.g. replace the soccer ball with a tennis ball or a rugby ball etc. Start the game off in a small area and make it bigger as the game progresses.