I have set up an air gun range at our Izaak Walton clubhouse. I am looking for targets that indicate a hit and are re-useable. We shoot from 3 yards out to 15 yards. We use flat paper targets at various distances. I have used soda cans hung by a string and I challenge the kids to shoot the strings. They are pretty good at that! Their eyes are better than mine. I have hung 1/4" beads with fishline. One hit and they are done. Next item will be playing cards mounted horizontally. That should be a lot harder! What other ideas out there to keep the kids entertained?