http://www.reneetaylorgallery.com/Lyman_Whitaker.html

In front of our La Quinta in Sedona, AZ (quite dog friendly, btw, if you need to travel with your pet, stay there... seriously...) was a pair of wind sculptures. A gallery in town, "expressions gallery" also had 6 or 7 of these sculptures, in various types (pinwheel, helix, etc). Turns out they are not local, but a guy in Utah makes them and Sedonites put 'em in front to catch wind AND attention. I want one. I want one badly. The way they move will captivate your mind.

OK, I am done gushing now. Check out the website linked for motion images to get the full idea of what these do. The one pictured here creates a double ripple effect - quite spectacular.