I played Hopscotch in Woodhaven, Queens in the late 50’s-early 60’s. We used pebbles but we also made our posties out of soda bottle caps flatten in the street. We tossed the cap into the road and waited for big trucks to come and flatten them. This was a big no-no according to our parents and we usually got in trouble for doing it since it required that we run into the road to retrieve the posty. Mary