Marble

1) The first step is to find a picture and draw it.
2) Outline it with perminit black marker.
3) Spray shaving cream in a flat pan.
4) Smooth the shaving cream in the pan.
5) Drop a few drops of color into the the shaving cream.
6) Use a paint brush to swirle paint around in the shaving cream.
7) Then press picture down into the shaving cream. (besure that all parts of the picture are covered)
8) Pull picture out of shaving cream and scrap off excess shaving cream.

Extention:
Abstract picture
Have the studetns makes shapes in the shaving cream.  Different lines and different textures could also be done in the shaving cream.