The other day, I spent a happy nap time in the kitchen with steaming pots of vinegar water, yarn, and dye. I haven't dyed yarns in years (some previous attempts here and here), so I refreshed my memory of the process with a few tutorials and then jumped right in.
Anyway, this round was done with food grade dyes on a bulky 100% wool single-ply base yarn. All of these little skeins are destined to become doll hair. Fairy doll hair.