This is the bottom part of the wind spinner. As the spinner rotates, this does too, and the ball gives an optical illusion of moving in the coiled wire. It is very relaxing to watch.
@casablanca _ This one is too. It was so nice and shiny I didn't want to put it outside. First I bought a solar-powered motor but it wasn't getting enough light on our side porch, so I purchased a rechargeable one that can be charged using USB. That way I'm not throwing a bunch of batteries away.
Love when a photo creates an emotion in the viewer.
Nice!!