I do a song called "My Wife Left Town With a Banana" which may not actually fit a thread on divorce music, but it will bring a smile. I have no idea where I learned this from, but wherever it was, I give them credit here.

MY WIFE LEFT TOWN WITH A BANANA

My wife left town with a banana
Life's a rotten deal
I found that yellow sucker hiding in her purse
He's cold and hard but he's got appeal
I hope it never happens to you
Some fruit breaks your marriage in two
My wife left town with a banana
She slipped away

My wife left town with a banana
Now I'm a jealous man
She found a six-inch Latin lover
Now she does the tango with her right hand
Right now I could just die
He's eating my banana creme pie
Oh, my wife left town with a banana
She slipped away