When you turn the ball over to the other team, use one of those handy pins to let the air out of the ball.
Then when you get the ball back, fill it up with air again with your handy air-pump from Canadian Tire or Zellers.
This will keep the opposition completely baffled all game long and you will win.
Another good idea is to untie their shoelaces, then tie them together in the Huddle. This is always a good one and might even get a chuckle or two from the crowd.