okay, maybe this is more about "tech / science" than fun but the perspective I want to bring here is more about the fun of it!
pareidolia (i.e. brain malfunction) happens with every single thing. it's basically our brain not functioning as we'd expect - it's easy to perceive it as "optical illusion", but it sure happens with songs, smelling, self perception, memories, anything. in my case I think I just don't pay enough attention to too many facial details for quick pattern recognition.
here's another fun one for most people:
and here's my small messed collection with just a few of them!