One idea could be that Paper Jam discovers the reader drowning in a lake or pool. He could use his unique abilities, like creating paper platforms or ropes to reach the reader and pull them to safety. Then, there could be a sweet moment of the reader recovering and a growing bond between them.
You could write a Paper Girls fanfiction where they discover a hidden power within the newspapers they deliver. Maybe there's a secret code in the papers that, when deciphered, gives them some kind of superpower. They then have to figure out how to use these powers to protect their town from a mysterious threat that only they can see because of their connection to the papers.
You could write a Paper Mario fanfic that involves time travel. Mario goes back in time to prevent a great disaster that happened in the past of the Paper Mario world. This could lead to him interacting with past versions of characters and changing the course of history in unexpected ways. Or, a fanfic about a new villain that only exists in the paper realm and has unique powers that Mario has to figure out how to defeat.
You could write a 'paper cutouts fanfic' set in an art studio. The paper cutouts are the creations of an artist, and they start to interact with each other when the artist is away. They might have adventures on the drawing table, trying to avoid being thrown away or finding new colors to add to themselves.
Well, a really cool Naruto chakra paper fanfiction concept could involve the chakra paper being used in a game. Like, ninjas compete in a tournament where they have to use their chakra on the paper in unique ways to defeat opponents. It could also be a story where the chakra paper is the key to a powerful weapon that an evil force is after.
A dragon with the power of telepathy. It can communicate with the minds of other creatures. In the story, the dragon helps a lost princess find her way back home by guiding her through its telepathic messages. The princess has to learn to trust the dragon's voice in her head.
One idea could be a dragon that has the ability to control time. In the story, the dragon could accidentally disrupt the time flow, causing chaos in different eras. The protagonist, a brave young wizard, has to find a way to communicate with the dragon and restore the proper time sequence.
Once upon a time, there was a little boy named Ming in a small Chinese village. He was fascinated by the beautiful Chinese dragon paper cuttings he saw during the New Year. One day, an old artist came to the village. Ming watched the artist cut a dragon so vividly. The artist told him that in Chinese culture, the dragon is a symbol of power and good luck. The dragon in the paper cutting seemed to come alive in Ming's eyes. He started to learn paper cutting from the artist. And he made his own dragon paper cutting, which brought joy and a sense of pride to his family.
One idea could be to create an alternate universe where the stickers have minds of their own and they form a rebellion against the characters who use them. It would add a whole new layer of conflict and adventure.
One idea could be a crossover with the Mario Kart universe. Mario and his friends from Super Paper Mario could find themselves on the race tracks, facing off against the regular Mario Kart characters. Another could be a crossover with the Legend of Zelda. Maybe Mario has to traverse Hyrule, using his paper - like abilities in a new and strange land filled with Zelda - style dungeons and puzzles.