(via) Finally, there is a Wii Helmet, but it is an april fool:
"Problem is the average gaming geek is just not up to the strenuous task of vigorous arm movement for longer than 10 minutes. This makes those extended play sessions a thing of the past... and who wants to beef up at the gym just to play video games on your couch? We sure don't.
Fortunately for cream puffs everywhere the WiiHelm is now available at ThinkGeek. Simply lock your existing Wiimote into the stylish white helmet and free your hands for relaxation... or other important tasks. After extensive scientific study it was found that manipulating muscles in your neck for 10 minutes uses 64% less energy than waving your arms about like a lunatic. The WiiHelm works great with all of your favorite Wii games and the included foot pedal allows easy button presses using minimal toe effort. "
Why do I blog this? Although it is a joke, that was of the ideas I was playing with few months ago, thinking about a caving game in which you control the light using the wiimote duct-taped to one's head. Playing with the head can be troublesome though... What about yoga games?