A great fanfic idea could be a crossover where Voldemort tries to take over Wonderland. The characters from Wonderland, along with the help of the 'Harry Potter' gang, have to fight against him. The magical creatures in Wonderland, like the Jabberwocky, could team up with the magical creatures from the 'Harry Potter' universe, such as hippogriffs, to defeat Voldemort.
In some fanfiction, Harry could be the one who enters Wonderland. Maybe he's on a quest there, and he meets the Cheshire Cat. The Cheshire Cat could guide him, but in a very mysterious way, just like how Dumbledore often gives cryptic advice to Harry. Harry would have to adapt his magical skills learned at Hogwarts to the strange magic of Wonderland.
A really interesting plot would be if the characters from Alice in Wonderland were students at Hogwarts. Alice could be in Gryffindor, always getting into strange adventures around the school that remind her of Wonderland. The Mad Hatter could be a Potions master who makes the most bizarre potions. And the Red Queen could be a strict teacher who is always trying to catch students breaking the rules. There could also be a plot where Voldemort tries to take over Wonderland for some dark purpose, and Harry and his friends have to stop him there.
A great 'Alice in Wonderland' bedtime story is when Alice attends the Mad Hatter's tea party. There are all these wacky characters like the March Hare and the Dormouse. The constant chatter and the strange rules of the tea party, like it being always six o'clock, can be both funny and a bit dreamy, perfect for bedtime as it lets a child's imagination run wild.
One interesting 'Harry Potter' fanfic could be those that explore different relationships between the characters. For example, a fanfic might focus on the friendship between Harry and Neville in more depth, showing how they support each other in ways not fully explored in the original books. Another could be a time - travel fanfic where a character goes back in time to change certain events in the wizarding world. There are also fanfics that might give more backstory to minor characters like Luna Lovegood, making her character even more fascinating.
One interesting plot could be a time - travel story in the Harry Potter wonderland. For example, a character goes back in time to the Marauders' era and gets involved in their adventures, while also trying to prevent a future disaster in the wizarding world. Another idea is a story where a new, powerful magic is discovered in the wonderland, and Harry and his friends have to figure out how to control it before it falls into the wrong hands. A third plot could be about an alternate reality where Voldemort won the war, and the remaining good characters have to find a way to reverse the situation in the harry potter wonderland.
One idea could be Harry finding a hidden portal in Hogwarts that leads him to Wonderland. There, he meets the Cheshire Cat who helps him understand some of the mysteries of the wizarding world in a different way. Maybe he has to solve Wonderland - like riddles to get back to Hogwarts.
A common theme is transformation. The 'Eat Me' item typically causes Alice to change physically, but in fanfics, this can also be extended to mental or emotional transformation. For example, she might become more confident or more curious about the world around her.
In a Naruto Alice in Wonderland fanfiction, Naruto could be transformed into a character like the Cheshire Cat. His orange jumpsuit could turn into a purple and pink striped fur, and his whisker marks could become more cat - like. He would then use his new form to help Alice (or perhaps a character similar to her from the Naruto world) find her way through Wonderland, all while cracking jokes and using his Naruto - like wisdom.
A cool 'alice in wonderland crossover fanfiction' idea is a crossover with 'Alice in Wonderland' and 'Percy Jackson'. Alice could end up at Camp Half - Blood. The demigods would be very confused by her, and she would be equally confused by all the Greek mythology stuff. Also, a crossover with 'Sherlock Holmes' could be interesting. Sherlock could be called to Wonderland to solve the mystery of the disappearing Cheshire Cat. He would use his deductive skills in this very strange and magical place.
One idea could be that Alice returns to Wonderland as an adult and has to deal with new, more complex riddles and challenges that are related to the grown - up world she now knows. For example, the Queen of Hearts might be having a 'tax collection' problem in her kingdom and Alice has to use her real - world knowledge of economics to solve it.