I like the evil scarecrow, myself. Criss-cross make-up, evil looking eyes, raffia hair, ragged clothes and of course a crow or two. You'll have to practice some menacing movements, maybe half scarecrow/half zombie? No matter which one you choose, I'll be anxious to see pics of the costume, scorpio.
I am leaning towards the scarecrow idea, judging on everyone and my opinion.
Now, badplanet.com has a clearence Scarecrow costome for $22 would this work, or make my own. Also does any one know of some scarecrow movies that has some good special effects so I can get ideas for my costume/face. Should I have a weapon?