Rhinotire - puncture-less tyres 
By wild_stuart -
Tyres
24 October 2008 02:05
Rhinotire (American spelling) - is a gel compound sprayed inside the tyre to aid punctures and flats.
Check out their video at: www.rhinotire.com
A blade is subjected to a road of nails, and then they even stick a series of screws in with a cordless drill. Awesome!