rail road scrap iron would be good too. Might be harder to distinguish from a firearm. If they start coming around to our yards with metal detectors though, they’re gonna have more to worry about that distinguishing between scarp iron and firearms. That’s go time right there.
Dad and my uncle would sometimes when we’re all sitting around a campfire in our back yard would tell a story or two. Couple of them were about how Mr. Charles (one of the terms they told me were used) would hide their weapons until the ARVN would leave then bring them out. So if like that were to happen here, same rules apply. Let them look all they want.