Work the name 'William Saroyan' into your modern lyrics and you'll have them eating out of your hand and get a big tip!

I'd think along historical lines:

From the Revolutionary era, the original version of Yankee Doodle is quite clever and funny:

Brother Efrem sold his cow and bought him a commission
Then he went to Canada to fight for the nation
But when Efrem he come home he proved an arrant coward
He wouldn't fight the Frenchmen there for fear of being devoured.

Sheepshead and vinegar, buttermilk and tansy
Boston is a Yankee town sing hey doodle dandy
First we take a pinch of snuff then a drink of water
Then we say how do ye do and that's a Yankee supper!

There are Broadside Ballads of the era:
You simple Bostonians I'd have you beware
Of your Liberty tree I would have you take care
For if perchance we return to your town
Your houses and shops will come tumbling down
derry down down down derry down

And the rejoinder

What a court hath bold England of folly and sin
'Spite of Chartham and Chapman Barr Burke Wilkes and Pymm
Not content with the Game Act they tax fish and sea
And America drench in salt water and tea
derry down, etc.

And of course a plethora of Civil War songs from PC to totally non PC and the era of Stephen Foster.