Intelligent designers and, in fact, everybody from the creationists and so on back to the beginning of the last century used to talk about the wonderful design of the eye—which somehow has all your receptor cells behind a membrane curtain!
The following ditty sums up the theory quite succinctly:
Sung to the tune of "The Battle Hymn of the Republic")
My bones proclaim a story of incompetent design.
My back still hurts, my sinus clogs, my teeth just won’t align.
If I had drawn the blueprint, I would cer-tain-ly resign.
Evo-Evo-Evo-lution! Design is but a mere illusion.
Darwin sparked our revolution. Science SHALL prevail!