Take a look at
www.dharmatrading.com . They sell Procion dyes (the best), urea, soda ash and some of the other things you might want or need for tye-dying (ie white shirts, bags, dresses, etc). If you just wanted to try something cheaper go to Wal-Mart and in their craft section they should sell a kit with soda ash, dye,instructions, and gloves. It is a pink box with a blonde girl in a tye-dye shirt. It is about $14. Good luck and have LOTS of fun!