Danny,
That your work is magnificent. I've been interested in kinetic art since seeing my first example. Your work is awesome and I'd love to see more. Do you have a Web site? I just had a birthday and I am getting a welder. I am fascinated by Rube Goldberg machines. I dug and installed a couple of ponds and built waterfalls, always thought water power would be fun to work with, old fashion water clocks, etc.
Would it be rude to ask what you would charge for a piece like the ones you show?
-Will (Dragonfly)