Mallard Killer got his WINDUK and cap. For a smaller decoy company, Winduk has a great duck hunting logo cap.
As to the spinners out in the decoys with no wind.... Could be ok for fresh un fired upon ducks.
But the birds we get in Texas have shot at all the way down the flyway... So I would leave not leave a WINDUK out in the decoys, that was not moving...
Same thing with the BATT MOJO's. We did leave a MOJO Mallard out on a couple of occasions with just one wing going...The other wing came off and feel into the water. It still pulled working Ducks with only one wing...
If you are a younger Duck hunter, focus on learning to pull those ducks with your duck calls. I am not a great caller, but my brother is pretty good. We get to hunt with a few professional Duck hunters each year. The one thing that impresses me most about them, is thier calling skills. They pull those ducks down into the decoys so fast and close, it is awesome. Learn to make the call sound like a real duck, not champion duck caller at a contest.
When we get to hunt Geese with our buddies that guide for some larger outfitters in N. Texas. The combined Goose Guides calling together really make a difference. My Brother likes to tell them on occasion, "put the paralyzer on them" which seems to be a higher more rapid pitch. It is a much harder sound to make with a goose flute type call. But these guys are very experienced callers. So the paralyzer call wears them out. Then you see thier faces turn red like a prom queen. They are out of breath but ready to get the cripples. And the gun barrels are smoken while gun dogs go stroken. (fetch)...................