Here's another one from the Camp Fire Girls Songbook:

The Chigger

(Tune: Polly Wolly Doodle)

Oh, there was a little chigger
And he wasn't much bigger
Than the head of a tiny pin.
But the bump he raises
Just itches like the blazes,
And that's where the scratch comes in.
But the bump he raises
Just itches like the blazes,
And that's where the scratch comes in.