Little magical dancing toys... how do they work??
I was in Italy, and I saw a few street vendors selling these little paper figures in the form of Disney cartoon characters that would dance when music was played. They had little strings for legs, and they seemed to hover magically in the air and bounce around in time to the music. When the vendor turned down the volume, the little thing stopped dancing. I looked at the back of it, and all I saw was a little strip that looked magnetic. I am mystified. Does anyone what these things are called or how they work?