As expected, the 100% wool took up color extremely well and the 100% acrylic yarn did not take any color. Surprisingly, the cotton obtained a stained appearance that I was unable to wash out during the course of filming. In comparison to the wool, the cotton received significantly less color. There are much more reliable methods for dyeing cotton to get vibrant colors (such as a Tulip Tie Dye Kit) and I would recommend trying these rather than wasting a lot of food coloring and vinegar.