The Eight Colour Witches

This story and other like it are the outcome of a game my four daughters and I used to play when they were quite young. Three would chose a random object or item and the fourth would make up a story about them, after about 5 minutes every body would contribute with the only proviso that it had to be positive. This created an atmosphere conducive to creative thinking. This story started out with the three objects-swimming pool, witches and a rainbow.