Forget the Oscar tribute to dead actors during the show ... a famous artist decided to pay homage (of sorts) to Philip Seymour Hoffman outside the auditorium by sculpting an Oscar strung out on smack.
The street artist -- who goes by Plastic Jesus -- has notoriously made a name for himself in L.A., and he's just found a way to tap into the heart of Hollywood.
P.J. says he wants to make a point that it's not just famous celebs who die of heroin ... drugs kill people in the show biz industry every week.
Maybe after the show he'll attend the Governor's Speed Ball.