Rubber Duck
The rubber duck presents what scholars have termed the "Paradox of Purposeless Joy"—a mystery that has confounded behavioural psychologists for generations. Why does a hollow piece of moulded plastic, incapable of actual locomotion or meaningful interaction, bring such disproportionate happiness to bathers of all ages? The duck offers no answers, merely floating with an enigmatic smile that would make the Mona Lisa jealous. Its silence is its strength, inviting projection of meaning where none exists. Furthermore, the Friendly Floatees incident of 1992, wherein 28,800 rubber ducks escaped a cargo ship and proceeded to circumnavigate the globe, remains one of oceanography's most delightfully inexplicable data sets.
Sherlock Holmes
Sherlock Holmes exists specifically to eliminate mystery, which presents a rather significant handicap in a category celebrating the unknown. His entire modus operandi involves reducing the marvellous to the mundane through cold logic. "When you have eliminated the impossible," he famously declared, "whatever remains, however improbable, must be the truth." How terribly deflating. Holmes cannot tolerate ambiguity; the rubber duck embodies it. The detective's own mysteries—his relationship with Irene Adler, the nature of his friendship with Watson, his recreational pharmaceuticals—were all eventually catalogued and explained. Mystery, for Holmes, is merely a problem awaiting solution, not a state to be cherished.