My personal favourite:

Ye nurgles and bogles
Of Bonnie Glen Pustule,
Oft have I greebled
Amongst your trees,
And wurtled my lassie
Among your nettles,
Swore my devotion
And stung both my knees...

We bogled and grundled
And grundled and bogled -
I grotted my muckles
For bonnie wee Joan,
Now she's run away with
A plumber from Sidcup,
So I lurk in the forest
And wurtle alone