Before you start: Cover your surface with the trash bag – it’ll keep the dye from making a mess and make for easier clean up.
Step 1: Rubber band your shorts in any pattern you desire.
Step 2: Lay out your dye in cups with water.
Step 3: Dip each rubber-banded area in the different color dye.
Allow for it to dry for 24 hours.
Step 4: Remove Rubber Bands.
Throw them in the laundry! Without washing anything else (unless you want to dye your clothes as well!), put your newly dyed shorts into the washer and let it run. Don’t worry about it staining the washer or all the colors coming out – neither of these will happen. Once they’ve been washed, dry them as you normally would.