Teeth

The Teeth equipment slot, unlocked by obtaining the mythical Mandibular Awareness skill, can be filled with a variety of nonexistant items, including:

antique orthodontia
dentures of awesome power (chosen weapon of vholes-piper)
Fang implants (mandatory for all Fang members)
Medusa grill (turns all who admire it to bling)
silver tooth (allows Ghoul Bite to slay ghosts)
The Pacifier (a protoype that can pacify other people is currently in R&D)
Marrow Scrapers MK7
Clockwork Grinders
Wednesday's mandible

Rumors of other teeth are unfounded, including
mislit wolf tooth
reflected wolf tooth
rasping teeth
shark tooth
black shark tooth
pearled shark tooth
ghoul teeth