Hey I built one last year and have a friend that has a real one so was able to copy and have pics of the build. There not as hard to build once you seen the real deal, the head movement is done with a univercel joint, if any one is interested, i have pics in my photo album. and on rottincorps’s Profile » Sinister Space - Halloween and Haunt Community let me know and ill put a how to and a parts list together
PS the back pack does work but it makes the stalk around look as if its faslling over, the store bought ones are made with copper pipe TO DAM COSTLY! i used pvc to sub. and it is light weight and easy to work with.
Rottin corps