I made up my secret weapon today.
I took an old Jake decoy and cut off his tail. Then I put and old jake fan I had laying around and put it on a hinge. I screwed the hinge to a board and put the board inside the decoy. I have fishing line run thru his neck to raise and lower the fan.
I saw this on Hunsuckers HB S.1 Video and the big gobblers tear them up. Gonna sse how it works on my place.