Since powdered drink mixes are readily available and reasonably non-toxic, it makes a great entrée into the world of fiber dyeing in your own kitchen. No specialized equipment is needed. I will, however, offer a few words of caution. First, avoid inhaling the powder; that wouldn’t be good for you. Second - perhaps obvious since you are dyeing things - it stains! Avoid getting it on clothes and wear rubber gloves if you don’t want your hands to evidence your work for a couple of days. A little bleach or baking soda should take care of your work surface, though spreading out a garbage bag before you begin is not a bad idea.

What fibers to use:
Kool-Aid dyeing works only on animal fibers: wool, mohair, alpaca — even human hair! It doesn’t work on cotton or synthetics, though, so use pure wool yarn for best results. Blended yarns containing a high percentage of wool do work, but the non-animal part of the yarn won’t take the dye and you won’t get very saturated colors. You can use this to your advantage: a cotton-wrapped wool boucle will come out colored with a white wrap. You need not use only uncolored yarns, either. Start with a natural tweed or over-dye a pastel. You can also dye rovings to great effect with this method. Just card and spin a few colors together once they’re dry. You’ll feel like an artist in no time!

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(via edegraaf)