I was pif'd some wire so experimenting was free for me plus there's the satisfaction of making one. Down the line when the novelty wears off (yeah right) I might give those a try.Lol...I get the pre-coiled wires and pop them into the little bodies. I can't always trust my hands to be able to wind a good coil. Sme days I can, some days noooooooo.... Lol

