Finally I've uploaded some pics of my my experiment with solar dyeing last summer at Flickr. It was not so sunny, so it took some time to exhaust the dye in the jar. You can also figure out how I made my owens - after not succeeding so well without. Here I use Wilson and other forms of food colouring. They come in several shades and are fun to work with with kids outside if the summer is warm. In Sweden you can purchase the colours from Kakburken. They are however cheaper from several British sites if you are a Swede. Cf my set with dyeing in the ball in my micro with food colouring available in ordinary super markets (yellow, green & red, mixable)!
