This is a wonderful sensory art, for everyone to enjoy. Make sure you cover yourself and your home well beforehand!!
First of all fill a washable or disposable plate with shaving foam. Using a long ruler scrape off the top, so you are left with a level surface.
I used distress inks, you could use diluted acrylics, or whatever liquid paints you have and drop them onto the foam.
Then using a cocktail stick or something similar, swirl a pattern around in the foam.
Place a piece of paper ontop of the painted foam and you can either drag it off or slide it off.
Wipe the excess foam off the paper and hopefully you should be left with a beautiful marbled effect.