Sun dyed fabric with lumi ink - watching the colour develop kept a 3 year old occupied for quite a while!
This is really useful to look at when you are making your tie dye cloth. It shows you about how to make different patterns with sharpies. The patterns are really nice, colourful and really bright. These patters definitely grab attention. Usually people can't make tiny detailed patterns by looking at this you can use it and it will really help.