Markers are used to draw random shapes on a piece of white papertowel. Be sure the paper towel is on top of a good piece of white paper. The teacher demonstrates how students should start with one shape in the center of their paper towel and then add more shapes nearly touching the first. All shapes should be colored in. When most of the paper towel is covered with color the student raises their hand and the teacher comes with a spray bottle to give their paper a few sprays.

Each student watches how the marker spreads (bleeds) out. Sometimes it forms fine tendrils, sometimes large blotches, and sometimes colors blend together. Students need to sit patiently and watch their paper for a while to appreciate the movement of the colors. They must not move the paper towel until it's drier.

Next, we turn the room into an Art Museum and students walk through looking at (but not touching) each artwork. This allows the pieces to dry a little more before they're moved to the drying spot. The next day students can take off their dry paper towel and see how it left a print. That print, however, is different from the original.

The images below on the right are the paper towel, images on the left are the print left after drying.