Yeh, seriously this isnt a joke, its a real product.
http://www.raceheadrest.com/home
http://www.youtube.com/watch?v=tO8FE...layer_embedded
It reminds me of a dildoh. Just imagine hitting a bump and having your chin slip off the pad and that thing slam you in the adams apple.
And if you get a chance take a look at the race headrest vest. I'm not sure what it does other than be a mesh vest that is too sexy for the bike