I started out by spraying blue Simply Spray dye in the center of the shirt. After seeing the finished shirt, I wish I would have made sure the blue saturated the shirt a little more. I then sprayed red "stripes" on the shirt. As with the blue, I wish I had been more generous with the red, but I still like it.
Let the shirt sit until it is dry enough to handle. Carefully flip your shirt over, making sure it stays in the spiral. Spray the back of the shirt the same way you did the front. Let the shirt sit until it is dry enough to handle and then hang it up to set and dry for about 24 hours.