Got any 10-hour video ideas?

Hello everyone, I am looking for some ideas for 10-hour youtube videos. You know, those loops that keep repeating some sort of meme or popular video. I've already made some but now I'm out of ideas. What would you like to see repeated over and over again in one of these videos? It cannot be something from a major buisness because they never give permission to use it and it also can't be something that has already been done by someone else.