Kinetic sculpture at the BMW Museum in Munich.
Triptych. A kinetic sculpture composed of metal, string, electric motors, and 300 wooden balls.
This type of sculpture looks like it would be well suited to SL. I'd love to jump in and experiment but, alas, I'm still in exile. If you're inspired and come up with something, tell us about it here.
I found these on the Dark Roasted Blend website today where they have an article on kinetic art.