Shack man, I've been very lucky and usually find stuff locally at hardware stores and farm stores. General internet searches have also yielded good results. I rarely go looking for items as I'm never in a hurry, I just notice stuff when I'm out and about and pick up one or two items as I see them. If a guy is on a time line putting a shack together and you want to make one order then Fish House Supply is your only real choice but if you just collect single items over the course of a year or so then they can be had much cheaper if you look around.