The Ice King could be really interesting. He's so unpredictable and his motives are often self - centered. If he's on the moon, he could be causing all sorts of chaos while also having some moments of unexpected kindness or vulnerability. He might be looking for a new place to rule or trying to steal moon - related magic for his own gain.
Finn would be a great choice. He's the main hero, always full of energy and ready for an adventure. His sense of right and wrong would be put to the test on the moon. Maybe he'd have to make some tough decisions about helping the moon - creatures or following his original mission.
In the Adventure Time world, Finn and Jake decide to take a wild journey to the moon inspired by 'Fly Me to the Moon'. They build a rickety spaceship out of junk from the Land of Ooo. As they blast off, they sing the song. Once on the moon, they meet strange moon creatures that look like floating crystals. Finn tries to communicate with them using his sword as a sort of translator, which leads to some hilarious misunderstandings.
One idea could be Finn and Jake finding a magical rocket that can actually fly to the moon. On the moon, they encounter strange moon - creatures that are made of cheese - like substances and have to figure out how to communicate with them. Another plot could involve Princess Bubblegum creating a special device to study the moon's unique ecosystem and sending Finn and Jake on an expedition there. Maybe they discover an ancient civilization on the moon that has been long forgotten in Ooo.
Rhysand would be very interesting. His powers and his complex character could lead to some really engaging time - travel scenarios. He could use his daemati abilities in different time periods in unique ways, perhaps to manipulate events or gain knowledge. He's also a character with a lot of depth, so seeing how he reacts to different time - travel situations would be fascinating.
The Dragonborn would be a very interesting character to feature. Since they already have special powers like Shouts, seeing how they use these powers in different time periods would be fascinating. For example, using the Unrelenting Force shout in an earlier era where the people have never seen such a power before.
Perhaps BMO gets curious about the moon after listening to the song. BMO builds a tiny rocket and sets off. On the moon, BMO finds a crashed alien spaceship. Inside the spaceship, there are some strange devices. BMO starts to tinker with them and accidentally activates a signal that attracts a group of space pirates. Finn and Jake, who were following BMO's signal, have to help fight off the pirates and save BMO.
Definitely Simba. Since he's the main character, a bath time story about him could explore his character in a new way. For example, as a cub, he could be rebellious during bath time, not wanting to sit still. This could be a fun way to show his early spirit before all the hardships he endures.
Definitely Harry and Finn. Harry has his wizard skills and his strong sense of justice from fighting Voldemort, while Finn is the fearless hero in Adventure Time. Their different outlooks on life and magic would make for great interactions. They could learn from each other, like Finn learning some basic spells from Harry and Harry learning about Finn's more physical combat skills.
Naruto and Jake would be a really fun pairing. Naruto's high - energy and determination combined with Jake's laid - back yet powerful nature would create some great interactions. Jake could learn about Naruto's dreams and Naruto could be amazed by Jake's shape - shifting abilities.
Finn and Jake are definitely popular choices. Finn's heroism and Jake's laid - back yet powerful nature make them interesting to write about in the academy setting. They can get into all sorts of adventures together and with their friends at the academy.
Finn and Jake are no - brainers. They are the main characters and their family - like bond is so central to the show. Marceline also stands out. Her complex family history makes her a great character for family - themed fanfiction. Additionally, Princess Bubblegum's role as a sort of mother - figure in the Candy Kingdom gives her a family - related aspect that can be delved into. The Flame Princess can also be a popular choice as her relationship with Finn can be seen in the context of a family - like connection.