Crunch the T-shirt into a bundle.
Randomly stretch rubber bands around the T-shirt in a crisscross fashion.
Immerse the bundle in the dye. Stir with a spoon and turn the bundle for 4 to 15 minutes or until the color is a little darker than desired.
Remove T-shirt from dye-bath and rinse the bundle under cool running water until the water runs clear.
Cut ties and rinse until water runs clear. Gently squeeze out excess water with a towel.
Re-tie, tucking some of the colored sections into the middle of the bundle.
Repeat dyeing with the next darkest color. Rinse as above.