Went over to the Llano Elementary yesterday. Was not expecting to find much as I hunted here rather often. I recovered 1 quarter, 1 nickel, 3 pennies, an electrical box popout disc, a broken zipper pull, a length of copper wire, a length of aluminum wire, some sort of electrical part, and a RING. The ring has no markings but is sturdy and well made so I think it is silver plate. It is nonferrous. While a different part of the playground, this is the same location where I recovered the mood ring earlier.