What are some unique plot ideas in 'Naruto and Harry Potter' fanfiction that are not inappropriate?

One idea could be that a character accidentally drinks Polyjuice Potion made from a pregnant person and has to deal with the sudden physical changes and the reactions of others. They might have to keep up the pretense while trying to find a way to reverse the effects, all while exploring the magic behind the potion in a clean, exciting way.

Perhaps in this fanfiction, there could be a group of magical bats that are guardians of an ancient Hogwarts secret. Harry, as he befriends them in his bat form, gets drawn into this mystery. These bats could have their own language and culture that Harry has to learn. For example, they might communicate through a series of ultrasonic sounds that only a bat - like Harry - can understand. This could lead to a whole new adventure for Harry, separate from the main battles against Voldemort but still relevant to the overall protection of the wizarding world.

One unique plot idea is time - travel. For example, a character going back in time to change a crucial event in the wizarding world. Another is the idea of a Muggle - born wizard creating a new form of magic that combines Muggle technology and wizardry. And there are also stories where characters from different Hogwarts houses have to team up in unexpected ways to face a common threat.

A plot idea could be that a group of Hogwarts students accidentally travel to the Avatar world. They are then forced to learn bending in order to survive and find their way back home. Along the way, they discover that there are some similarities between magic and bending, like how both require focus and discipline.

One unique plot idea could be a time - travel scenario where Harry goes back in time and has to work with Lily to prevent Voldemort's rise without changing too much of the future. Another could be an alternate universe where Lily survives and she and Harry have to face new threats together.

A unique plot could be that the Issa Brothers have a special power that can break dark magic spells in the Harry Potter universe. They use this power to help Harry and his friends when they are trapped by Voldemort's dark magic.

One plot could be that Viper has a spell that can control minds, and she uses it on some of the Hogwarts students. Harry Potter discovers this and tries to find a way to break the spell. Loki, being the mischievous one, initially seems to be helping Viper but then has a change of heart and joins Harry to save the day.

Perhaps a story where Harry discovers a hidden connection between his parents and Alice Longbottom. Maybe his mother had a secret friendship with Alice, and through this connection, Harry uncovers a powerful magic or a long - forgotten prophecy that involves both of their families. This could lead to a whole new adventure where they have to work together to fulfill the prophecy and save the wizarding world. In this plot, they might have to face challenges not only from the dark side but also from the wizarding establishment that doesn't want the truth to be revealed.

Some unique ideas could be that baby Harry has a special bond with magical creatures from a very young age. For instance, he might be able to communicate with Hedwig even as a baby, through some kind of magical telepathy. This could set up a whole different dynamic in the story.

One idea could be a character who uses Dirty Harry - like tactics to deal with the Death Eaters. For instance, being extremely direct and fearless in the face of danger, much like Dirty Harry in his movies.