Like all the best things in life, it all started as a joke. Will override the Reaper Enshroud eye transformation. There's not enough texture slots to have both.
I couldn't resist. Bunnies, with adorable buck teeth! As with the others, I opened up the rear of the vanilla mouth mesh and added an extra mesh to the face group, too, to prevent looking out of the back of your character's head when their mouth is open; may clip out of the neck in extreme (Read: neck-breaking) poses.