Charapronouns are pronouns that are based on the name of a fictional character and may be used by anyone who kins said character. The individual who uses them can make them any variation of the character's name.
For example, if someone is kins the character, Luke Skywalker (from Star Wars by George Lucas), their pronouns could be something like Luk/Sky, or anything else that has to do with the character.
Etymology
"Charapronouns" is a portmanteau of the words "character" and "pronouns."