Spa Person: Last year my sister dressed up as a spa person! What you need is your pajama pants and a shirt, then put a big fluffy robe on and if you want you can even put one of those green spa masks on!!!! Make sure you take a pillow case for your trick or treat bag!!!) Thanks to an anonymous submitter for this idea Another Idea To be a spa girl you need to have a white robe, house shoes,a towel on your head as if you were drying your hair, a hand held mirror, and some green face make-up. Have fun!! Thanks to Kelly for this addition.