Studio Ghibli gives itself a rare cameo in Hayao Miyazaki’s Porco Rosso, as seen here on the airplane engine. We also see the name “Ghibli” on a passing bus in Kiki’s Delivery Service in a quick shot. And didn’t Mimi/Whisper also have the studio’s name etched onto a grandfather clock? This was definitely a recurring thing for a time, but why it was begun and later abandoned is anybody’s guess. They just did it for fun, I suppose.