I have made some over time, various wood, used steel rods from HD for shaft, designs just made them up or used Images from searches. The Pizza guy was for a friend with Pizza Parlors called Big Apple. Cutting the angles on the Hub for propeller blades was a pain, and Bending the Rod for the motion as well.I think I might want to make a few whirligigs, just for fun. Anyone have any tips, tricks, plans, or book recommendations to offer before I get in too deep.