Halloween Teaser - Pretty's costume

Let see if you can guess what Pretty is going to be for Halloween. There are two clues.

Clue one: These are the supplies.

Old white t-shirt, red fabric, plastic, pink Rit dye, and stuffing.
 Clue two:
When I asked Hero, "What should Pretty be for Halloween?",  he said, "Pink."

*no guessing, Aud, since you already know.*