McGrath of Harlow gave us this:

"Oh see Willy, see - 'ere go
Forty buses in a row."
"Oh no, Willy, them is trucks."
"What is in them?"
"Cows and ducks."

I learned something similiar, like this:

Seevilli, dare daygo
Furtee busses inaro
Onovilli, demmis trux
Summit coussand summit dux

Dave Oesterreich