Materials needed: a tray, dish or similar container, shaving foam, food colouring, toothpick, wooden skewer or pencil, paper or card and a piece of thick card or cloth ‘scraper’.
Start by squirting out some shaving foam onto your dish. You only need a thin layer, and this will act as your base. Then drop on some food colouring. You can add as many different colours as you like. Use a toothpick, wooden skewer or pencil to swirl the food colouring through the shaving foam to create a design you like. Then press a piece of paper or card on to the shaving foam, smoothing the paper/card a little so that all the surface is in contact with the foam. It only needs to touch for a second or two for the food colouring to transfer. Carefully peel back the paper/card and place it face-up on the table. You can repeat the process again and again, adding more food colouring if you want to. Once your marbling surface becomes too full of colours simply rinse off all the colour and foam and begin the process again.