Ey mon! Dis troll be crackin' da skulls. You can't own a Troll without transmogging it back to their voodoo glory. If you are unable to get the recent gear in Zul'Aman, it is possible to obtain the old Burning Crusade badge gear which have very similar styles.
High Chief's Crown
Pauldrons of Gruesome Fate
Plate of the Shaman King
Bloodthirster Wargreaves
Giant - Sized Gauntlets
Bladed Steelboots
Exalted Girdle
Hate Forged Cleaver