Coming out of lurkdom to share this which my 8yo daughter pointed out to me.
Runny Babbit by Shel Silverstein is written in spoonerisms (transposing the sounds of two words).
One poem is called Runny's Hew Nobby and reads:
"Runny Babbit knearned to lit, And made a swat and heater, And now he sadly will admit He bight have done it metter."
Shows a picture of Runny Babbit (Bunny Rabbit) knitting a sweater with "one slong leeve."
Too cute!
Gina Beirne