Suminagashi

...or Paper Marbling.

From Wikipedia:

Paper marbling is a method of aqueous surface design, which can produce patterns similar to smooth marble or other stone. The patterns are the result of color floated on either plain water or a viscous solution known as size, and then carefully transferred to an absorbent surface, such as paper or fabric.

I ordered my inks and through a crazy mishap actually got them for free! Yippee!

If you are bored look this up on the internet and be impressed. Actually, try it first, then google image it and be blown away. Lily loved it and did it all on her own with verbal instruction.