Free: Contests & Raffles.
Why don't any stores in Washington sell jerk string decoys? Doesn't make sense to me? Someone should tell cabelas they aren't legal here!
The post are 4 feet and I have used anything from 2 feet to 10' EMT; whatever floats your boat. I'm working on a floater wind powered gizmo right now, don't have the pitch figured out yet. More to come; why spend $$$ when you can make them at home??
Check out the Winduck's, they seem to work good for me. I'll use half dozen of them early in the season, maybe 1 are 2 later when they start getting decoy shy. Usually the best price is on there site http://www.winduk.com/. No batteries to worry about, and if it's not windy it's usually not worth hunting anyway.