I really want to do the helm next. I would do a standard 'bowl' with patterned bumps to represent the hard crocadile helms the wore into combat. I am trying to design an africanized bargrill that would represent my open face. My current helm is standard issue. I blackened it and added beads to the back to represent hair. You can see me wearing it with my old rig.
http://www.youtube.com/watch?v=Higpmx-HwQM