Joy or Dawn
Cold, clear water
Frying pan
Coat hanger
Glycerine, available at drug stores

Let a grown up bend a coat hanger into a loop, can be done with ordinary wire. Mix 1/2 cup Joy or Dawn dish detergent with 5 cups water. Measure carefully, it makes a big difference. Stir. Add 2 tablespoons glycerine, if you have some it makes the bubbles more durable but it can work without it. Now dip your coat hanger loop into the solution, then wave it into the air. The longer the solution sits, the better it is, so don't throw any away.