Here's an amusing one that not too many know:

Words by Woody Guthrie Circa 1940
Tune: traditional "Molly Malone"

I'm a Jolly Banker


My name is Tom Cranker and I'm a jolly banker,
I'm a jolly banker, jolly banker am I;
I safeguard the farmers, widows and orphans,
Singing I'm a jolly banker, jolly banker am I.

When dust storms are sailing and crops are all failing. (as above)
I'll check up your shortage and bring down your mortgage. (as above)

When money you're needing for mouths you are feeding. (as above)
I'll plaster your home with a furniture loan. (as above)

If you show me you need it, I'll let you have credit. (as above)
Just bring me back two, for the one I lend you. (as above)

When your farm you are losing and sadly you're crusin'. (as above)
I'll come and foreclose, get your car and your clothes. (as above)

When the bugs get your cotton and times they are rotten. (as above)
I'll come down and help you, I'll rape you, I'll scalp you. (as above)

When the landlords abuse you or sadly misuse you. (as above)
I'll send down the police, keep you from mischief. (as above)

Cheerily,
Charley Noble