Little Miss Bobbitty-Boo

I originally came up with this version of Lorena Bobbitt's nursery rhyme, based on the rhyming and rhythm schema of "Three Blind Mice"

A  Little Miss Bobbitty-Boo. Little Miss Bobbitty-Boo.
A  Whatever did she do? Whatever did she do?
B  With a carving knife commit a deed
B  That caused her man to thrash and bleed.
B  She threw his knob into the weeds.
A  That Little Miss Bobbitty Boo.

For comparison's sake:

A  Three Blind Mice. Three Blind Mice.
C  See how they run. See how they run.
B  They all ran after the farmer's wife,
B  Who cut off their tails with a carving knife,
B  Have you ever seen such a thing in your life,
A  As Three Blind Mice?

The rhyme retains the convenient carving knife element and also borrows the the "title" of Little Miss Muffett. 

Soon afterwards, I came up with something a little more colorful and original:

Sad Missus Bobbitt. 

Mad Missus Bobbitt. 

Glad Missus Bobbitty-Boo.
She served her man a cold revenge,

with verve and derring-do.

When one night Mister Bobbitt 

Came home quite besotted
A cleaver she did wield.
She chopped her husband's knob right off
And tossed it in a field.

Soon later the Bobbitt 

Appendage was spotted.

And swiftly sewn back on.

Then Bobbitt and his Knobbit had

A brief career in porn.

Sad Missus Bobbitt. 

Mad Missus Bobbitt. 

Glad Missus Bobbitty-Boo.

Don't cross her path when she is mad

You might lose your knob too!

Bobbitty-Boo, which uses Lorena's name, is also a reference to the magical song sung by the Fairy Godmother in Disney's Cinderella, "Bibbidi bobbidi boo".