Mr. Twisty Dance:a vertical wind turbine or wind art

I made this while playing with openscad. It didn't need the twist, but I think it's much more beautiful this way. I didn't use a raft layer when I printed it so it came unglued about 2/3 of the way through. I'm using it with a 7mm screw along with a generator, though I don't think it will provide very much power. You can also hang on a string and use it as wind art.