When I was a girl guide in the 60's it used to be POP'S got a head like a ping-pong ball, but don't ask me why!
Another one based on "classical" music was to the tune of the Soldiers' Chorus from Gounod's "Faust":
Oh dearie, look at your Uncle Jim,
He's in the duck pond learning how to swim,
First he does the breast stroke, then he does the side,
And now he's in the deep end, swimming against the tide.