I am not sure. Right now I only have regular floating decoys. I have had trouble decoying ducks the last few years. Seems they want motion before they will commit. I guess I was thinking something along the flapping wings would be good. However something in the water may be good too. What are most doing to their spreads to make them seem more the the real thing? Are there any other tricks I should try as well to my spread? I have generally been using about 2 dozen decoys in the potholes.