Here some nice ideas!:

-Demon Set (Tail, Feets, Claws, Horns.)

http://feelgrafix.com/group/demon.html

-ScareCrow Set (Curved Hat, Old Cloth.)

https://www.google.cl/url?sa=i&rct=j...02953485815260

-PumpkinHead (Kinda allien looking)

http://www.sideshowcollectors.com/fo...tom-1-4-a.html

-Werewolf (Wolf looking body)

http://www.guoguiyan.com/werewolf-wallpapers.html

And there goes all my ideas for this amazing event!!!.

Peace out.

Liankan