hmmm that may be a good idea.....
i had been thinking of just reprinting the pieces that go there. They're quite small, and are only part of that grove.
i was thinking of mounting one or two small computer fans in the side pieces of the helmet, and making a small plastic channel that blew the air up and over the head. But that's soemthing i'll have to figure out after i get the helmet glassed and bondoed