It's fun to hum the old republic flash gordon series theme as you scroll through these :D
Cool, thanks for your comment.
You do this a lot, but still my first thought was about planets that are themselves public domain. Where every person and every thing there can be copied without worry or offence. Impersonation is common and only frowned upon when you stop pretending to be that person without finishing a bargain committed in their name, but the place is extremely prosperous due to their ability to copy things.Spend too much time there and you will start running into flawed copies of yourself, allowed under parody, and acting in a simplified way to how the locals see you. Spend long enough to gain citizenship, and all of your identity is fair game, although impersonations will be more accurate.Very good source for replacement characters.