Sometimes, the first example one sees of a given type of wordplay becomes the ideal for all that follow. I showed a collection of palindromes to a friend who somehow had never encountered them before. In addition to ABLE WAS I ERE I SAW ELBA and RATS LIVE ON NO EVIL STAR, the collection included TEN ANIMALS I SLAM IN A NET and A MAN, A PLAN, A CANAL -- PANAMA.
Connett, John E.
Word Ways: Vol. 33
, Article 4.
Available at: http://digitalcommons.butler.edu/wordways/vol33/iss1/4