A colourful mini playground for the imaginative little people! For each colour of rice desired - place 1 1/2 cups of white rice in a plastic container, add 1 teaspoon of white vinegar and 4 to 5 drops of a food colouring. Put the lid on the container and shake well. Lay out the coloured rice on a tray or paper towel, and let it dry for an hour. Repeat for each different colour. Once dry place the coloured rice in a large clear plastic bin, and add the toys or accessories to play with.