Cotton and cotton blend handkerchiefs dyed with turmeric, using a soy milk mordant. After I boiled up a handful of dried turmeric root pieces, which didn’t seem to let much of their colour out into the water, I put the softened bits and the water into the Vitamix and made a slurry. Except for staining the Vitamix jar yellow and getting gobs of root bits all over the fabric (hi I don’t strain things enough) the result is a pretty good gold.