check this out!  this is a whole new way to control guitar effects...

it's like a p.c. based talk box but using it with all different types of
effects.....

http://www.mis.atr.co.jp/~mlyons/mouthesizer.html

check out this quote:

"The musculature of the face allows for fine motor control of actions, and the associated cortical circuitry occupies a comparatively large part of the somatosensory area. So it is interesting to explore the possibility of machine interfaces that are driven by facial action. Because facial action is involved in both speech production and emotional expression, there is a rich space of intuitive gesture to sound mappings for face action. These thoughts motivated our current exploration of facial gesture musical interfaces. It would be interesting to develop a facial gesture music interface for quadriplegic djs to allow them to control the expressive part of techno loops, for example. Spinal paralysis usually leaves cranial nerves, and facial control, intact"

totally cool.

Extremely cool. This idea can be taken to new heights!

Either for exploring new possibilities or for those who are physically unable to control something like a wah-pedal, either temporarily or permanently, this kind of thing could be really beneficial.

I stumbled across something similar when I was researching for a project I did a couple years ago. I couldn't find the original page, but as I recall there is another site with some more information; that project was done in 1998 or so.

That page has been around for at least a couple years. It's kinda like a computerized EHX Soul Kiss.