A Fun Project to try at home -- Marbled Paper

Here is a great at home project for you to try. We just made cards out of this homemade marbled paper, and it was a lot of fun.
You will need:
Shaving Cream (buy the cheapest you can find, we used plain old Barbasol)
A Baking Dish
Spatula
Construction Paper or Card Stock
Tempera Paint (Washable is best!) in 2 or 3 complementary colors.
Small Paintbrush

To start, fill a baking dish with shaving cream, 1-2 inches thick.
Smooth surface with a spatula.
Drizzle paint over the shaving cream.
Using the handle of your paint brush, swirl the paint to make interesting patterns.
Press a sheet of paper into the pan.
Make sure to get the whole sheet of paper covered with shaving cream.
You can either wipe the paper with a paper towel at this point in the process, to speed the drying process, or let it dry overnight to let the shaving cream evaporate.
We used these for party invitations, and they turned out really great!