Yorick With the Bad Teeth

Yorick is named for the character from Sam and Friends, Jim Henson's first TV show from the 1950s, who was probably named for the dead guy in the garden from Hamlet.  The design is an interpretation of a Play-Doh toy called Dr. Drill N Fill.  It was a plastic head that opened wide so you could make teeth out of Play-Doh and pretend to drill cavities.

It's meant to be one of the toys on the shelf in the Angry Mophead story.