Well, you could have an OC that is a young Thundercat - in - training who idolizes one of the more experienced Thundercats. This OC could make mistakes while trying to imitate their hero, leading to humorous and also educational situations. For instance, if they idolize Panthro and try to copy his driving skills without proper training. Another concept is an OC that is a healer with a special connection to the magic of Third Earth. They could use their powers to heal not only physical wounds but also emotional ones among the Thundercats, and in the process, they could uncover secrets about the magic that even the Thundercats didn't know.
A Thundercats and Star Wars crossover fanfiction would be really cool. The Thundercats could be in the Star Wars universe, and their unique powers and weapons could be a great addition. Maybe the Thundercats could help the Jedi or the Rebels in their fight against the Sith or the Empire. For instance, Cheetara's speed could be useful in battles, and Tygra's illusions could be used to deceive the enemy.
One interesting story could be about a new adventure where the Thundercats discover a hidden power. Maybe they find a long - lost weapon that has special abilities.
One interesting aspect could be the unique interpretations of the Thundercats characters in the 2011 version. Fanfiction often takes existing characters and puts them in new situations or develops their personalities further. Maybe in this lemon fanfiction, the relationships between the characters are explored in a different light, adding a new layer of depth to the story.
They could be in a story where they accidentally swap powers. Lion - O gets Cheetara's speed and she gets his connection to the Sword of Omens. This would lead to a lot of comical and also challenging situations as they try to adjust to their new abilities while still fighting the forces of evil.
One idea could be creating an OC who has a unique power related to time manipulation. They could be from a different dimension and end up in the Avengers' world. Another idea is an OC who is a master of ancient magic and teams up with Doctor Strange within the Avengers group. Maybe an OC that is a super - intelligent android created by a villain but has a change of heart and joins the Avengers.
You could create an OC for your Persona OC fanfiction who is an artist. This artist OC could use their art as a way to understand and even manipulate the Metaverse. For example, they might draw scenes from the Metaverse that give clues about upcoming events or hidden locations. Their art could also be a form of therapy for other characters who are struggling with their dual lives in the real world and the Metaverse.
Perhaps an OC who is a half - human, half - beast creature. This OC could struggle with acceptance in both the human and beast - kin societies. They end up meeting the main characters during their adventures and learn to embrace their unique identity with the help of the group, while also adding their own combat skills, which are a blend of human strategy and beast - like strength, to the team.
One idea could be to explore the Riddler's origin story from the perspective of your original character (OC). Maybe your OC is a detective trying to solve the mystery of the Riddler's first crime spree. Another idea is to have your OC be a sidekick of the Riddler, either willingly or by being forced into it. They could then have a complex relationship where the OC tries to influence the Riddler's actions for better or worse.
One idea could be an OC who is a brilliant scientist in the Fallout world. They could be working on a secret project to reverse the effects of radiation. Another idea is an OC who is a wandering trader, having all kinds of adventures while traveling from one settlement to another, facing raiders and mutants along the way. And a third idea could be an OC that is part of a new faction trying to bring peace and order to the wasteland.
You could also create an OC human who discovers a hidden talent for communicating with trolls through music. In the fanfiction, this character could use their musical ability to bridge the gap between the two worlds, maybe even creating a new form of harmony between trolls and humans that was previously unthinkable.