Traits

A straight slit. 

Item: Free

A toothed slit. 

Item: Free

A zig-zag slit. 

Item: Free

A blocky slit. 

Item: Free

Multiple slits on the face. No trait required for slits on the rest of the body!

Item: Mutated fungers

Slit functions as a zipper.

Item: Cursed Buddoll

An unusually shaped slit, such as a swirl.

Item: TBA

Slit breaks anatomy and splits down past the top of the mouth. [optionally can create a "split jaw" type mouth]

Item: N/A