found this on engadget... kinda made me proud of this community because this group makes the iron man helmet look terrible. but on the other hand its 30 bucks... so that cant be bad.
http://gizmodo.com/5471571/shouting-i-am-iron-man-sounds-far-more-credible-in-this-helmet
http://gizmodo.com/5471571/shouting-i-am-iron-man-sounds-far-more-credible-in-this-helmet