John Henrick's "Limits of the Human Life Cycle" in the August issue of Word Ways inspired several readers to send in additions, most notably Dmitri Borgmann who supplied over 225 examples. A collection of the best is presented below, arranged according to the type of wordplay used.
Keller, Robert Cass
Word Ways: Vol. 17
, Article 7.
Available at: http://digitalcommons.butler.edu/wordways/vol17/iss4/7