WELL !
I have started something with this thread !
I can remember lots of the games mentioned, especially the playground games.
No-one has yet mentioned marbles, which as a child in London we used to play on those patterned drain covers everyone had outside their house, for 'rodding through' ! They had diamond patterns on, and a hole at each end for removing, which made satisfactory wells for the marbles to land in.
Then there were all those games you could play with a 2' long loop of string on your fingers and thumbs. I can still do 'chicken bum'