One common scenario could be Percy revealing his true identity to save his friends. For example, in some fanfictions, his friends might be in danger because of a misunderstanding about him. So, he reveals himself as a powerful or special being to clear the air and protect them.
In some fanfictions, when Woody reveals himself to Andy, it could be a very emotional reunion. Maybe Woody has been lost or on an adventure far away, and his return brings back all the great memories they had together. Andy might be overjoyed to see his old friend again and they could start a new adventure right in their own backyard.
In fanfiction, when Harry Potter reveals himself, it could be a moment of great drama. Maybe he reveals his true identity to save his friends from a dangerous enemy. For example, if they are being tricked by a Death Eater in disguise, Harry might step forward and expose himself to stop the harm.
The Joker might be furious. His identity has been his biggest secret and Batman taking that away is like stripping him of his power. He could go on a wild rampage, more so than usual, targeting Batman directly and also anyone who he thinks might have had a part in the revelation.
One possible motive could be Sasori's desire to create the perfect puppet. Sakura, being a strong kunoichi, might have physical and chakra attributes that Sasori finds appealing for his puppet - making. He may see her as a unique specimen to add to his collection of puppets.
When writing Sasori's character interactions in a crossover, consider his past. He has a lot of trauma related to his own transformation into a puppet. If he meets a character who has also faced some form of self - alteration or loss of humanity, there could be a deep connection. Maybe they start by sharing their stories hesitantly and then form an unlikely bond based on their shared experiences.
In the fanfiction, they could have a mentor - mentee relationship. Naruto, with his big heart and positive attitude, could be the one to show Sasori a different way of looking at things, like a mentor. Or Sasori could teach Naruto some of his puppet - related skills, acting as a mentor in that aspect.
I'm not entirely sure if there is a specific 'Harry Potter is Sasori' fanfiction. However, considering the popularity of fanfiction and the tendency of fans to mix different fictional elements, it's highly possible. Writers might be interested in exploring how a wizard like Harry Potter could interact with Sasori, a puppet - using ninja. It could involve things like Harry learning about Sasori's unique abilities and how they could be used in the wizarding world, or Sasori being introduced to magic.
One great fanfic about Deidara and Sasori could be 'The Bond Beyond Art'. It delves into their unique relationship, exploring how their different views on art coexist and even complement each other in the story. It shows their adventures together in a way that stays true to their characters from the original series.
Well, in fanfiction, Sasori and Sakura can be put into various scenarios. Since Sasori was once an antagonist, it's interesting to think about how Sakura, who represents the side of good, would interact with him. If they are forced together, it could be like a clash of two different worlds. Sasori is so used to his own way of doing things with his puppets, and Sakura is used to her ninja training and teamwork with her comrades.