This is a great project for kids, or adults. I first saw the idea on the blog found here.
All you need are some Sharpies, rubbing alcohol and something to drip it from (I had a syringe), and a t-shirt, or other clothing.
I put a piece of cardboard in my tank top to prevent bleeding.
Step 1: Use the Sharpies to make marks on your t-shirt.
Step 2: Drip some drops of rubbing alcohol. I did about 4-8 drops.
Watch your design expand
Step 3: Dry your t-shirt completely before washing. I dried mine with a hair dryer and then washed it in the washing machine. Here's the picture before I washed it:
After I washed it the colors faded, but I still like the look:
TIP: After drying the shirt with a hair dryer, allow it to set for 24 hours before washing. Then, wash in cold water. I did this with my practice shirt and the colors stayed a bit better. They still faded a little bit, but not as much.