I look for anything & everything as I go strolling through a creek bed and sandy shores ! I once was walking in Sandy Creek in Macon ,Missouri and found a old red clay brick with the manufactures name on it. I still have it in my wife's flower bed and that's been 40 or 45 year's ago. same with a bunch of square cut nails (I can't find them anymore)Someone must'a "nailed me for them"!!!!