Piercing a tongue in the name of mobility 
From: New York Times News Service - 06/08/2011

Martin Mireles says his mother was not happy with his tongue piercing: It
didn’t fit his image as a former church youth leader.  

But as Mireles told her, it was for research. Paralysed from a spinal cord
injury since he was shot in the neck almost two decades ago, he was recently
fitted with a magnetic stud that allows him to steer his wheelchair with his
tongue. 

Read the entire article at:
http://www.timesofoman.com/featuredetail.asp?fid=952
http://www.nytimes.com/2011/06/07/health/07tongue.html
http://www.bendbulletin.com/article/20110610/NEWS0107/106100353/

Links:
Maysam Ghovanloo
http://www.ece.gatech.edu/about/personnel/bio.php?id=147

Tongue Drive System
http://www.ece.gatech.edu/research/labs/gt-bionics/Research3.html