DIY BLEACH

To make a grid-like pattern, fold the shirt like an accordion and bind it between two pieces of wood or other flat shaped objects. Hold the shirt in place by wrapping a series of rubber bands around the bind. Anything used to bind the clothing will prevent the bleach from penetrating, and the rest of the exposed fabric will bleach and turn color.

cool isnt it?

  

from http://honestlywtf.com/cool-hunting/upstate/