[Astromancer]

Odd Dentation might be another good Quirk/Perk. If the character spends a lot of time in a Goth subculture, obvious fangs could be a perk. Mainly this would be a Quirk. Memorable to scary animalistic teeth, but without any added damage bonus.

Odd Dentation could also go with advantages like Sharp Teeth simply to show the downside of the enhanced/modified teeth.