There are some funny ones but I don't know if you would be interested. If so start with the tune for 'The White Cockade' and insert the words for any one of -

Does you chewing-gum loose it's flavour
My old man's a dustman
Yellow submarine
Pinball Wizard
Karma Chameleon
Sit down next to me

and so on....

I do 'Chantilly Lace' to the tune of the Parting Glass - always fun!

Enjoy

Dave the Gnome