I built a windmill out of a rear wheel that turned up in my front yard. The vanes are plastic (they could be riveted aluminum from beer cans if you like) and it's topped with a motor home hub cap (also found on the road), but it looks cool. It's in the wrong spot to catch much wind, though- it barely spins.
__________________
Jeff Wills
Comcast nuked my web page. It will return soon..