Thanks, but not a pea or spider. Turns out it's some sort of seed pod (I opened it up). It looks similar to a young Sycamore seed pod but its smooth and not rough or bumpy. It has a thin leathery texture, about the size of quarter, perfectly round, green, brown spots. On the inside-green center with sycamore feathery sprouts. Found in a driveway in southern Ohio.