We dyed some Tshirts last year successfully, and this time we tried traditional Japanese fabric dying technique of shibori, the art of folding, twisting or pleating fabric and then dying it to create a controlled pattern.
One of my pieces of fabric was dyed on a pole, tightly secured at the top of the pole with string, and then crumpled and wrapped around the pole and tied tightly in a spiral. Dye was injected on a random basis. The fabric is wrapped in plastic and left for 24 hours, then rinsed in cold water until the water is clear. The piece can then be washed in warm soapy water and the colour won't wash out.