Like shiny stars rested on an even plain,
The rubber planet will soon crash.
So the young can develop their brain,
They save the 'stars' and they laugh.
think the answer is the game of "jacks" : the rubber planet is the
ball, and kids try to pick up (save) the jacks (stars). Kids games are
both for amusement and educational purposes, which explains the brain
development and the laughing. I'm not quite sure about the meaning of
the title, though.