Two especially satisfying examples of the elfshelfism, a riddle form presented visually:
(#1) Image: a cute furry mammal clinging to a bone. Punchline: lemur on a femur. (note: like elf and shelf, lemur and femur are (perfect) rhymes; unlike elf and shelf, however, they’re rare and remarkable nouns)
(#2) Image: a buxom woman reclining provocatively on a pile of Mexican food. Punchline: Dolly [Parton] on a tamale. (note: for most American speakers, Dolly and tamale are perfect rhymes, but for a substantial minority of American speakers, and for many others, they’re half-rhymes)