(yes, “need answer fast”, as I’m preparing a sheet of Oscar trivia and it’s scheduled to go to print in a few hours (I know with this group, I’ll probably get a quick answer anyways, but covering the bases.))
I heard somewhere that the person who announced the nominees (and winner) of a particular Academy Award was also a nominee himself - who turned out to win the award, thereby presenting an Oscar to himself! (The rules were changed after to not have a nominee be a presenter in his or her own category). Anyoen remember who that is?