Maybe Courage stumbles upon a time - traveling computer. The computer transports him to different eras in history, but there are glitches. Courage has to find a way to fix the computer while also dealing with the strange situations in each time period. For example, in the Middle Ages, he has to convince the locals that he's not a sorcerer because of his strange appearance.
One idea could be a story where Courage discovers he has a long - lost sibling. Another could be a fanfiction where Eustace becomes friends with Courage after an otherworldly adventure they go through together. Maybe a story where Muriel gets a special power and Courage has to protect her from those who want to use it for evil.
One idea could be that Naruto somehow gets transported to the world of Courage the Cowardly Dog. He might mistake Eustace for a grumpy old ninja and try to befriend him. And when faced with the spooky entities in that world, he uses his ninja skills to protect Courage and Muriel.
One common theme is self - discovery. The interaction with the computer often leads the character to discover their own courage that they didn't know they had. Another theme could be over coming challenges. The computer presents obstacles or problems that the character must face with courage.
One popular 'computer x courage fanfiction' might be about a computer that somehow imparts courage to its user. For example, it could be a story where a shy person discovers a sentient computer program that gradually gives them the courage to face their fears, like speaking in public or standing up to bullies.
In some computer fan fictions, a character might show courage by attempting to hack into a highly - secured system to retrieve important data. They are aware of the legal and ethical implications but still go ahead because they believe the data is crucial for saving lives or solving a big problem. Also, characters who volunteer to be the first to test a new and potentially dangerous computer - related technology within the fanfic's story world are demonstrating courage.
Another plot could be a crossover with Adventure Time. Courage could end up in the Land of Ooo. He might meet Finn and Jake and they all go on an adventure to save Courage's family from an evil force. Finn's sword - fighting skills and Jake's shape - shifting abilities would work well with Courage's resourcefulness in strange situations.
Courage in computer - related fan fiction can be shown through characters taking risks in the digital realm. For example, a character might bravely face a powerful virus or a malicious hacker. They could show courage by not backing down when their virtual world is in jeopardy, standing up to protect the integrity of the computer system or the digital community they belong to.
Courage could be a character in a virtual world inside the computer. He could be a digital hero, fighting against malicious software that wants to corrupt the virtual world. For instance, he might battle digital dragons that are actually viruses in disguise.
One plot idea could be Katz getting a taste of his own medicine. Maybe he tries to prank Courage again, but this time Courage outsmarts him in a really elaborate way. For example, Courage could set up a series of traps that lead Katz into a situation where he has to face his fears, just like he always makes Courage do.
Surprise is a key element. For example, in a story where a cowardly character suddenly shows great courage in a situation no one expected. It creates an interesting contrast. Also, self - deprecating humor. When the person with courage can laugh at their own initial fear or clumsy attempts, it makes the story funnier.