awww you are so fickle minded!!! there are gazillions of costumes there! I would've picked out the baby costume for you! Imagine, WK wearing a nappy and a bib with a pacifier lol.. :P
and who said you need a scary costume? any outfit will do.. and just so you know, we are scared of you already -- scared that you might rip to pieces or the wind might blow you away..! :P