Every kid that grew up in Brooklyn, and a lot of other places, has heard these:

Whistle while you work
Hitler is a jerk.
Mussolini
cut his weenie
now it doesn't squirt

Another one from my yout:

I'm Popeye the sailor man,
I live in a frying pan.
I turn up the gas and I burn up my ass,
I'm Popeye the sailor man.

Pretty tame stuff these days - but, back then, repeating them to my father was a big mistake!