Goodie, I get to add a quantum to the trivia pile:

"Kaiser Bill went up the hill
To take a look at France.
Kaiser Bill came down the hill
With bullets in his pants."

Sung to a shaved-down edition of "Jack and Jill Went Up the Hill."

Interestingly, this one was mutated among elementary school children in Rapid City, South Dakota sometime before about 1969 to "Custer Bill. . ." It is plausible the kids picked "Custer" after the fairly nearby Black Hills town of Custer, which they had heard of, rather than the alien word "Kaiser."

Turning to the Colonel Bogey March lyrics: I've seen in print, can't remember where:

"Hitler -- has only got one ball!
Rommel -- has two, but they are small.
Himmler -- his are dissimilar,
And poor old Goebbels, has no b'lls, at all!"

That's my favorite version of the verse, for the sheer Britishness of the rhyme for Himmler. I know the last line does not need the commas, but we know where the rests are.

It's a matter of historic record that the British prisoners of war on the Railway of Death substituted Japanese officials' names -- though they didn't let the Imperial Japanese Army in on it!

Mine Eyes Have Seen the Glory tail-enders I heard in late 1960s elementary school ran:

"...met her at the gate/With a loaded .38..."
"...met her at the door/With a loaded .44..."
"...met her in the attic/With a German automatic..."