Here are two recipes for soap bubbles. There is the regular bubbles and the SUPER bubbles. Both provide an inexpensive, safe and fun diversion for children.
To make 12 floz/340ml
4 floz/115ml washing-up liquid
8 floz/225ml water
2 drops food coloring
Mix all the ingredients together in a glass jar and cover. Use a bubble pipe or make a homemade bubble wand out of an old coat hanger or other wire. Store the bubble mixture in a tightly covered jar.