The Wii Mario Kart thread led me to looking at Wii controller accessories (Wii Mario Kart comes with Nintendo's Wii Wheel), which eventually led me to the NYKO site.
NYKO has some cool ideas!
How about no cord between your remote and nunchuk? (uses your existing nunchuk)
(http://www.nyko.com/img/nyko/products/thumbs/Cord-FreeWii.jpg)
http://www.nyko.com/nyko/products/?i=136
Or an actual wireless nunchuk? (uses a NYKO nunchuk)
(http://www.nyko.com/img/nyko/products/thumbs/WLNunchuck.jpg)
http://www.nyko.com/nyko/products/?i=133
And my favourite, the PerfectShot:
(http://www.nyko.com/img/nyko/products/thumbs/PerfectShotWii.jpg)
http://www.nyko.com/nyko/products/?i=124
The toy gun orange paint it a nice touch on the PerfectShot.
I wonder what the performance an feel of the NYKO nunchuck is?