Found this square-sided spike, about 11" long. lying flat 6" or so deep in an old schoolyard. Guessing since it was flat it got pulled and thrown in the grass and never picked up. Was something like this ever used for a circus or carnival etc. tent? The other pieces are from the same location. No idea on the oval loop/hook iron piece. The other almost looks like a piece with trigger loop from a toy pistol or rifle but probably isn't. I'm keeping these because they are kinda cool but knowing what they were would make them more significant to me.