I installed this kinetic sculpture last year for a client and of course had forgotten to take our camera along to get any pictures. She recently sent me pictures in its progression through several seasons. Very cool.
It stood nearly 5' tall and has two blades that spin on large ball bearing swivels. The base is supported by tube. The first picture reminds me of a butterfly catching it's first rays of sunlight in the morning, it's wings soaking up the sun's warmth.