Another contemporary animation classic on YouTube. This 1980 Hungarian short by Ferenc Rofusz won an Oscar.
Hungary was at the time a Communist country and Rofusz himself wasn’t allowed to leave the country to attend the Oscars. Without his knowledge, somebody accepted the award for him during the show. I recall watching an interview once with Rofusz where he explained who the guy was, and how surprised he was during the broadcast to see somebody he didn’t know accepting the award for him.