I like how some of the hairs are from video games and movies so here are some ideas I thought would be cool:

Messy long hair, Hp Lovecraft hairstyle, Scully and Moulder hairs, Macho Man moustache, presidental hairs, clown hair that wouldn't spawn naturally on pawns? Something that gives that rock punk kinda feel for both males and females? More sci-fi related media hairs?

Dunno if any of these will be considered but it'll be cool to hear more good suggestions