Take one wing on your spinning wing decoy,drill a hole at the bottom out side edge put a 24 inch heavy(tanglefree work best) decoy line tie a knot at one end slide it in the hole tie a knot at the other end,then place it just close enough that the knot touchs the surface of the water turn it on and it will spray water up and the ducks GO CRAZY trying to get down to it,Been working for a long time for me,and can be seen for a long way. Be carefull it will beat the hell out of you.We use SUPER LUCKY DUCKS with plastic wings and the spray looks like feeding duck making ripples in the water and moves the decoys around nicely.