Couldn't you link it up to the eyebrows as well or something? Maybe have some kind of power-glove/one man band kind of arrangement to make an entire replica of a human head that you could wear.
Kind like that robotic head of a fat bitch in Total Recall or an animatronic turtles mask or some shit.
Oh come on, this could be a great new outlet and resource for creative Halloween costumes. Wanna be Pope Innocent III? Now you can! Want to be Sigmund Freud? Yes!
I want to be Marie Curie this year, or maybe Phil Hartman. I'm buying one of these.