What are some interesting ideas for Shrek crossover fanfiction?

One idea could be a Shrek and Harry Potter crossover. Shrek could find himself in Hogwarts, causing chaos with his ogre ways among the wizards and witches. Maybe he'd mistake the Polyjuice Potion for some kind of ogre - enhancing drink.

Maybe in the fanfiction, Shrek and Fiona are both actors in a play about their ogre selves. As they rehearse, they start to have real - life feelings for each other. They have to deal with the public's perception of their on - stage characters while exploring their new relationship. They might go through funny moments like when Shrek accidentally breaks a prop during a romantic scene, and Fiona can't help but laugh, which makes their bond even stronger.

Maybe in the fanfiction, the Fairy Godmother has a change of heart after seeing the love between Shrek and Fiona. She then decides to use her powers to protect their relationship from other threats, like an evil wizard who wants to break them apart. She would have to use her wits and magic in new ways to keep them safe. This could involve her creating magical barriers or disguises for Shrek and Fiona when they are in danger.

One interesting idea could be a crossover with "Moana". Elsa's ice powers and Moana's connection to the ocean could create a really cool dynamic. Maybe Elsa accidentally freezes part of Moana's ocean and they have to work together to fix it. Another could be with "Tangled". Rapunzel's long hair and her adventurous spirit combined with Elsa and Anna's journey in Frozen 2 would be exciting. Rapunzel could use her hair to help them climb mountains or cross chasms. A third idea is a crossover with "Beauty and the Beast". Belle's love for books and knowledge could help Elsa understand more about her powers and the history of magic in the Frozen world.

One idea could be that Shrek and Shaggy meet in a magical forest that's a cross between Shrek's swamp area and the spooky woods where Shaggy often has his adventures. They could team up to find a special ingredient for a potion that would solve a problem in both of their worlds, like a drought in Shrek's land and a monster invasion in Shaggy's.

One idea could be that the reader is a lost traveler who stumbles upon Shrek's swamp. Shrek, being the gruff but kind - hearted ogre he is, decides to help the reader find their way back home. Along the way, they encounter various fairy - tale characters and have to work together to overcome obstacles. This could involve things like outsmarting a tricky witch or helping a giant who has lost his way.

A Rambo crossover fanfiction could involve him crossing over into the Star Wars universe. Rambo's guerilla warfare tactics could be interesting in a galaxy far, far away. Maybe he helps the Rebel Alliance in a ground - based battle against the Empire. Or a crossover with the Predator series. Rambo would be a worthy opponent for the Predator, and the fight between them in the jungle could be epic. Also, a Rambo and John Wick crossover would be intense, two highly skilled fighters on the same side or perhaps initially at odds.

One idea could be a crossover with a modern military setting. The Decepticons could be trying to steal advanced military technology. Another is a crossover with a post - apocalyptic world where they are competing with other factions for resources. A third could be a crossover with a magical realm, with the Decepticons trying to harness the magic for their own evil purposes.

One idea could be a crossover with Naruto. Kakuzu could be sent to the Naruto universe and form an unlikely alliance with a shinobi village to fight a common enemy, like the Akatsuki from his own world turned rogue in the new universe. This would create a lot of interesting character dynamics and battles.

Another option is a crossover with 'The Little Mermaid'. The characters from the descendants could meet Ariel and her friends underwater. Evie might be interested in the mermaid fashion and could design new outfits inspired by the underwater world.