That's not a rock.
It is a pumpkin.
Notice the orange paint and black crayon markings.
There are five pumpkins here; props for a 2 year old singing "Five Little Pumpkins sitting on a Gate".
Those aren't rocks either. They are dinosaurs playing soccer.
Notice how half are white and half are black.
Look closer and you will see the players' numbers carefully scrawled on each.
See how they rest on the small field. That is not a wipe board covered with green crayon, that is a soccer field.
So now you know.
Really, will you ever see a rock the same way again?