Pretty niche lost media here:
There was this animatronic resturant in competition with chuck e cheese back in the day called "Showbiz pizza". The company that made the animatronics/owned the characters made a clown animatronic to greet guests at conventions related to robots/entertainment.
Not much is know about it, not even it's name. So I guess the lost media comes in the form of lack of video/audio of this guy, we only have photos of it's existence, not even it's voice actor is known.
A lot of old animatronics nowadays have been destroyed or simply left to rot in some guys basement, so it's not likely we can just find this guy and turn him on.
article about it on the showbiz pizza wikiImage of the clown now, it looks even more spooky now that it's been melted/damaged.
