So, it turns out that a Sen'jin Fetish is not only a perverse attraction to large troll tusks, but also a non-combat pet obtainable through the Argent Tournament. The submitter Sean happens to have recently bought the latter. With a little help from an acquaintance, a Pet Biscuit and some Pygmy Oils, he's managed to turn his Fetish into an ill-fitting mask. His newly acquired Twisted Visage with Blood Draining enchant also adds to the voodoo effect. The dress still looks a little too druidic, though. Sorry, Sean, not everyone can be as cool as a troll.