Good morning -Not sure of the age level of humor you're interested in tapping into, IanN, but there are a few Rugby tunes that would certainly make you Legendary...
Less bawdy, but still funny, is The Limelighters' classic, "Have Some Madeira, M'Dear"...
I second skin-the-goat's suggestion of Bogle's "Nobody's Moggie Now" - Hilarious !
Regards,
Murph