If heated afterwards (microwave works, I think), Kool-Aid will dye wool. I have a raspberry beret from the 80's that has raspberry Kool-Aid (and some cherry and blueberry 'cause the color wasn't quite right at first). No idea what Kool-Aid and heat would do to film, though. jnanian? tried that, yet?
Originally Posted by Stephanie Brim
Indigo works on just about everything (including the stuff you're not trying to dye).