I have used the edge rabbit, the foxpro
jack, and a feather on a stick.
So far the best one I have used was the feather on a stick. Hang it from the tree or bruch and let the wind play with it. it will also let you know what way your dogs are going to come in. Most of the time they will come in from the down wind side.
the Fox pro Jack works great also but have not had one jsut make a b-line for it yet. I have had them watch it and circle but that is it.