Siliconera found patent filings from Nintendo for a football controller addon that will work with the Wii. After tucking the Wii Remote into a lateral slot on the football, you slip your hand through a strap so that your fingers touch the Remote's buttons. Then you mimic running and throwing, which is interpreted by the accelerometer. 'The pitch angle and force of the throw determines the trajectory arc of the throw. Side to side motion determines the yaw angle. Pressing buttons on the Wii remote can adjust other options.' The device is described as 'squishy,' so your TV is probably safe, but I'd try it at a friend's house first.