Here's something I've been working on for about 10 years now. I buy little by little and make a lot of my own stuff. I use PVC, foam, hangers, and anything I find I can make fit.
This is a little something I put together this weekend. Went to party city and saw a cool looking object that looked like roots in the form of a humanoid with a skull sort of head. I thought I can do that. So with a the junk I found around the house some insulation foam for glue and a store bought pumpkin jack-o-lantern I made my own jack-o-lantern come to life in my front yard.
Actually, this picture doesn't do it much justice since it's amongst plants, it's almost as if it's camo'ed so you can't really see it.
May need to work on the netting and get rid of some of the leaves too busy there.