I remember playing tetherball and "four square" when I was in elementary school.
Used to play "army" in a sandbox with some friends - we made homemade rubber band 'guns' and would shoot at the other person's toy soldiers in the sandbox. A hit counted as a point.
Also made a homemade skateboard out of an old disassembled "shoe skate" (the metal ones that clamped to your shoes.....with the 'key' to tighten them!) Nailed the two halves to the bottom of a board and away I went. Lots of fun til I hit a big crack in a downhill sidewalk - crashed and burned big time! Still have the scar on my elbow.......
Bill