OMG! This is very impressive. Coincidentally I am a helmet designer (www.soap-design) and this blows me away. Moto, skate, snow helmets can be made for sure. A bike helmet is another story. The surfaces are more complex, both external and internal. Currently I sculpt everything out of clay but this direction is a new ball of wax!...er, ball of clay ;-)
I've only made a helmet for fun, and using sub-D modeling. For production it's good old fashion clay. Not sure why you can't access my site. It's a plain html site.
Thank you sir!
Every helmet must meet the testing norm. It's a safety product first and foremost. Anything beyond the test norms is the fun stuff I get to do! :-)