What about converting motorcycle helmets? As a biker of more years than I care to mention and being acutely aware of how fragile the old noggin is. When I look at most helicopter helmets of which most are unbelievably over priced and designed 30 odd years ago I shudder to think of what use they may be. In comparison, I have jumped off lots of motorbikes and seen many people headbutt tarmac around racetracks and barely even noticed, getting up with nary a headache.
Just curious as to what others think?
Cheers
ET