He might replace Sasuke's kunai with candy - shaped ones. It would be really funny when Sasuke tries to use them in a fight or training. Another prank could be that Naruto hides Sasuke's training gear and replaces it with a bunch of candies.
There could be many stories. For example, a gay man named Alex had a long day at work. He was in a relationship with his partner, Tom. After a busy day, he came home, had a warm bath, and then went to bed. He was thinking about the nice dinner they had planned for the weekend as he fell asleep.
Among the search results, there were a few novels that were worth recommending. The first is "A Life-Saving Tactic Every Day"(author unknown). This novel might meet your needs. In addition,"The First Chaos in History"(Author: Zhang Xiaohua) and "Laughing Casual Man"(Author: Mr. Jing Xin) were also good choices. In addition, there were also some books about routines, such as Armor: Emperor Man Doesn't Play According to the Rules, The Strongest Anti-routine System, and The God of routines. These books all described how the protagonist did not play by the rules and used all kinds of tricks to create his own glory. I hope these recommendations can help you.
One possible prank could be that Harry and Luna use magic to make the Order members' shoes squeak uncontrollably whenever they walk. It would be really funny to see serious Order members like Moody or Kingsley trying to figure out how to stop the squeaking while on important missions.
Kurama is often depicted as mischievous in fanfiction. His powerful and somewhat arrogant personality leads him to play pranks on Naruto. He might think it's beneath him to be so closely tied to a human, so he uses pranks as a way to assert some sort of control or just to amuse himself.
Harry could use the Marauder's Map to always know where Voldemort is and then set up little magical traps in his path. For example, a puddle that turns into a sticky mess when Voldemort steps in it.
One of the funniest pranks could be that the Kyuubi makes Naruto's clones start singing cheesy pop songs instead of following his commands. Naruto often uses his clones in battles and for various tasks. So when he sends them to attack an enemy, they all start singing and dancing instead. This would not only be a shock to Naruto but also to his opponents. Another great prank would be the Kyuubi making Naruto's body move in the opposite direction of what he wants. So when he tries to jump forward, he jumps backward instead, leading to all sorts of comical situations.
Maybe Harry could use a transfiguration spell to turn all of the twins' clothes into something ridiculous, like bright pink tutus. Since they are always the ones playing pranks, it would be a great turn of events. He could do it when they are about to go to a big event at Hogwarts, like a Quidditch match or a school dance.
Well, there's a fanfic where they prank Carlisle by making his office look like a disco. They put up disco balls, flashing lights and played really loud disco music. It was hilarious. Also, the prank where they switched Rosalie's beauty products for really cheap and smelly ones. Rosalie was so angry and her reaction was quite memorable.