Four from Norman Douglas, as quoted by Stephen Fry in The Ode Less Travelled:

There was an old fellow of Brest,
Who sucked off his wife with great zest,
Despite her great yowls,
He sucked out her bowels,
And spat them all over her chest.

There was a young man of Nantucket,
Whose prick was so long he could suck it,
He said with a grin,
As he wiped off his chin,
'If my ear were a cunt I could fuck it.'

There was an old man or Corfu,
Who fed upon cunt juice and spew,
When he couldn't get this,
He fed upon piss,
And a bloody good substitute too!

There was an old man of Brienz,
The length of whose cock was immense,
With one swerve he could plug,
A boy's bottom Zug,
And a kitchen-maid's cunt in Koblenz.