Can the joystick nunchuck sense motion, too? If not, you could use two Wiimotes...
Richard Simmons the video game. Not a joke, played totally straight. Take a Simmons workout video, add a Wii-ified DDR for the upper body. Get him on O'Brien, Letterman, and Leno and advertise the shit out of it. No real marketing, just Richard Simmons playing this stupid little game on late night television.
BOOM. You've just sold the Wii to at least a half million people who would have never played a video game before. Hell, hook up four Wiimotes and two fat housewives can compete at how hard they can out-workout Richard Simmons!
It was named the Revolution for a reason.