Papier mache over a wireframe sculpted out of a sheet of chickenwire. I sculpted the main head first, then the jaw as a seperate peice. I made sure they could fit together before I macheed them. I put the papier mache on them as seperate compontents, painted them, and attached the jaw with some screws (also painted them). Then I painted some fake fingernails (the ones you get in "witch" makeup kits around halloween) silver, and hot glued them in as teeth. While I was at it, I dribbled some of the hot glue around the mouth to make the slime and tendons.
That was the hard part.
The suit was simply a turtleneck that I slipped onto a mannequin as a guideline and sprayed Greatr Stuf foam sealant onto it in a Giger-esque, biomechanical pattern. I then painted that black. The legs are simply black tights, with nothing added (although they would look better if more biomech was added). The hands are green monster gloves painted black and silver. The feet are skeleton hands (black painted) glued onto a pair of black boots.
Hope this has helped
