I was thinking an exotic bull or ox helmet for the titan and a jackrabbit one for the hunter. Kinda like the ram or stag. The exotic perk for the titan one could be called [b]Stubborn [/b]: taking damage while shoulder charging increases movement speed. Or maybe it could work like the imolation gauntlets and grant the the juggernaut perk for free (while using the striker subclass). The hunter not sure about that one yet