Suminagashi

(sue-me-NAH-gah-she)
literally translates to "ink-floating"
 
Kodak Photo-Flo or Olive oil
Inks, acrylic paints
Absorbent paper

Suminagashi is the process of gentle dropping ink into a still pool and gently blowing to dispurse the pigment, creating a delicate pattern of swirls in the water.  This pattern is then captured on a piece of rice paper by carefully laying it across the water surface.
This is similar to the European practice of marbling also called Ebru or Turkish-style marbling.

Whatever the image your little artist wishes to create, once they are happy with the image they have created in the water, lay the sheet of paper across starting with the corner closest to you and proceeding to the corner diagonally opposite.  The excess ink can be skimmed off using a piece of newspaper and the next image can be started.