I don't know if anyone else does this, but I am constantly adapting songs for my ds and life in general. This morning we had 2 songs...
BOGEY BEEBIES (to the tune of Boogy Beebies) when ds had a really snotty nose
POODLE POO (to the tune of Doodle Doo) when he had done a particularly smelly one
Sometimes we adapt nursery rhymes or even make up words to classic tunes. I can't think of anymore at the moment as they usually spontaneous, but wondered about others' songs.