I was once at a songwriting workshop where our challenge was to write new versions of Humpty Dumpty: we came up with some crackers, all in about 10 minutes, e.g.
Humpty Dumpty sat on his erse
Writing verses exceedingly terse
Expressing his feelings everyone for to tell
Before he lost courage and returned to his shell.

Humpty Dumpty sat on a cat
His mammy said "Ye dinnae dae that"
"Too right "says pussy, "You're nae sae dumb"
And she bit Humpty Dumpty right on his bum.

Humpty Dumpty sat on a chair
Humpty Dumpty tore oot his hair
That's why he's sae baldie ye ken
No becouse he wis laid by a hen.

(You might possibly guess that these were written in Scotland!)
That's just 3 out of 9 verses: if anyone should want more I'll try to add them later!
TB