Singing this to my five month old, and it suddenly kind of creeped me out. Bunnies hitting field mice, good fairies coming down and chastising bunnies...so I thought I'd google and see if I could find the acid droppin, pot-smoking origins of this weird little song. How weird that NO ONE knows where it came from!!! No known author, but we all know it and have sung variations. Too strange.
Where I come from, it goes:
"Little bunny foo foo hoppin' through the forest, scoopin' up the field mice and boppin' them over the head....DOOOOOOWWWWWWWWWWWWNNNNN comes the good fairy....and THIS is what she SAID: Little bunny foo foo I don't want to see you scoopin' up the field mice and bopping them over the head....I'll give you three more chances, then I'll turn you into a goon." And when the fairy comes down, you do your fingers kind of like jazz hands coming down from the sky.