X-Men
Who doesn’t love the X-Men, the comic book that was turned into an animated television show and then into a film franchise that went worldwide? Everyone knows the main characters like Professor X, Wolverine, Cyclops, Storm, and so on. They are so recognizable that apparently, they are the new bathroom symbols now.
We honestly would really like it if all bathroom symbols were switched into images like this. Public bathrooms can be a terrible experience depending on which one you enter and at what time, so you might as well have some fun with them. A little bit of vandalism makes everything less of a drag.