This picture is not very good, the actual ATC card looks more distinct.   I put flower shapes into clear marbles... This card could fit in 2 of the exchanges I am in. Flowers or From the Past...I used it for the past, because marbles were a fun game to play almost anywhere as a kid.
My group of friends played in the nice fine dirt in the alley, behind our houses.  It wasn't unusual for half a dozen kids to clump around our string circle.