(A touch childish this one)

What do you call a one-legged donkey ?
A wonkey donkey
What do you call a one-legged, one-eyed donkey ?
A winky wonky donkey
What do you call a one-legged, one-eyed donkey having a shag ?
A bonky winky wonky donkey
What do you call a one-legged, one-eyed donkey having a shag while farting ?
A stinky bonky winky wonky donkey
What do you call a one-legged, one-eyed donkey having a shag while farting and wearing blue-suede shoes?
A honky-tonky stinky bonky winky wonky donkey

And finally......

What do you call a one-legged, one-eyed donkey having a shag while farting and wearing blue-suede shoes and playing the piano?
A plinky-plonky honky-tonky stinky bonky winky wonky donkey


(Now you really wanted to know that didn't you?)