A few years back I was contacted by The Crypt haunted house about costuming their signature character. It was to be a kind of pumpkin spirit/demon with a pumpkin head and skull face. The being traverses the barrier between Hell and Earth, menacing people while here.
The overall look incorporates vines and leaves and barbed wire into the costume and the staff. In September and October, sometimes you can spot him walking around at First Friday in Phoenix, Second Friday in Mesa, and even at cons to promote the haunt.

I put a bunch of photos HERE.