Interesting that you saw that, too, enjoydotcom. This reminds me of the process of marbling paper. You take a big tub of water, add some Elmer's glue to it, then add drops of colored printer's ink. The chemical reaction makes the ink swirl into fantastic patterns. When you like the way it looks, you lay your paper down carefully on the water and pick it up. The result looks a lot like this. If you try it, though, be forewarned--it takes the ink a long time to dry and your work area has to be cleaned up with solvents because the ink is oil-based.
drawn in 5 min
drawn in 22 min