Dr William Spooner was a lecturer at New College, Oxford. He is remembered, not for his scholarship, but for his ha bit of exchange the opening letter/s of two words.
Adlai Stevenson didn't mind adding a little humour to his comments. Once when he was attacked by Protestant minister, Norman Vincent Peale, he said, "I find the apostle Paul appealing and the apostle Peale appalling."
Lincoln didn't mind wordplay either and once wrote, "He said he was riding bass-ackwards on a jass-ack through a patton-crotch." (Work it out.)
Some are quite rude and very funny but I can't post them here. Do YOU have some favourites?