Mannequin - Broken Seal
The concept behind this one would make for what I would hope will be a terrifying revelation. That at some point the mannequins started using human bodies as their base foundation. 

I saw the molds that some studios use to cast the heads and other various body parts for their mannequins, and I imagined how horrifying it would be to have your head sealed in as your locked away in fiber glass.

This ones slightly broken up revealing the internal super structure.