I was in elementary school, and we sang a song, could have been a medley, I don't quite remember, but there were a couple different parts to it...Here's what I remember

Looking through the knothole
   In Grampa's wooden leg
Why do they build the shore
   So near the ocean
A snake's belt slips
   Because he has no hips
And a boy's best friend is his mother

Oh be kind to your web footed friends
   For a duck may be somebody's mother
Be kind to your friends in the swamp
   Where the weather is very very damp
Well you may think that this is the end...
   Well it is!!!