Olympic medalists in art competitions
en.wikipedia.org
en.wikipedia.org
If that's the emphasis of the competition, it's not too surprising that the Olympic stadium or Olympic Village would do well, even with completely objective judges.
I guess it's tough because art cannot be objectively judged.
But neither can figure skating or the high jump, so maybe it's feasible.
Who can build [X] the fastest, from scratch. Could be a house, clothes, food, etc. Known objective, and meritocratic.