Chicago folksinger/banjoist used these "floating verses" when he recorded "Sugar Hill" for Folk-Legacy. He told Norm Pellegrini that he might have learned the song from Dock Walsh (remember the Carolina Tarheels?), but he was unable to remember for sure.

You want to get your eye knocked out,
You want to get your fill,
You want to get your eye knocked out,
Go to Sugar Hill.

Get a lonesome farmer, gal,
I want a drink of rye;
I'm a-going to Sugar Hill
Or know the reason why.

Possum on the rail fence
Looking at the sun;
Hound dog coming down the road,
Possum better run.

Possum up the 'simmon tree,
Raccoon on the ground;
Possum up the 'simmon tree
Shaking 'simmons down.

Fourteen miles of mountain road,
Fifteen miles of sand;
If ever I travel this road again
I'll be a married man.

Get your banjo off the wall,
Grab your fiddle, Bill;
Hitch the horses to the sleigh,
We're going to Sugar Hill.

Well, I don't want no drover gal
Drives a four horse team;
All I want's a pretty little girl
Turns her wheels by steam.

And just about any similar quatrain will do. I doubt that anyone would object that you were doin' it "wrong."

Sandy (Folk-Legacy's resident folk fogey)