The showers could start shooting out different potions instead of water. For example, a truth - telling potion that makes everyone spill their secrets. Or, the shower heads could transform into small magical creatures that sing while you bathe. Also, the floor of the shower room might become a portal to a different part of Hogwarts or even a magical realm.
Well, it might be a secret room where the projector shows prophecies. Harry, Ron and Hermione could stumble upon it while exploring the castle. The projector could be enchanted to only show relevant prophecies when the right person enters. For example, it might show a prophecy about the next big threat to the wizarding world that only Harry can see and understand.
He could gain new magical abilities. For example, if he becomes a phoenix, he might be able to regenerate from ashes and have the power of flight in a more natural way than with a broomstick. This would change his role in the wizarding world significantly.
Well, it could be about Harry having some sort of magical revelation while in the shower. Maybe he discovers a new spell or a hidden mark on his body that glows in the shower steam.
She could have had a spooky encounter, like hearing strange noises at night.
Well, one interesting event could be that he discovers hidden chambers within the manor. Maybe there are secret rooms filled with ancient magic artifacts left by his ancestors. Another could be that he hosts a grand wizarding ball at the manor, inviting all his friends from Hogwarts. It would be a magical event with floating candles and enchanted music.
Well, Harry could use his magic to make the rides even more exciting. Maybe he'd use a spell to make the roller coasters fly higher or faster. He could also use his invisibility cloak to explore hidden parts of the park without being noticed.
A possible plot for a Harry Potter shower room fanfiction could be that the shower room is haunted by the ghost of a former student who was wronged in that very place. Harry, being the brave one, decides to communicate with the ghost and find out what happened to help it move on. Another idea is that the shower room's water has some special magical properties that start affecting the students' magical abilities in unexpected ways. For example, it makes Neville suddenly able to perform advanced herbology - related spells. And a third idea is that the Marauders once hid a prank - related map in the shower room that Harry discovers, and it leads him on a wild adventure around Hogwarts.
Yes, there could be a self - adjusting projector. Instead of having to fiddle with knobs like in the Muggle world, it automatically adjusts the focus and size of the projection based on the number of people in the room and their proximity to the screen. Another item could be the enchanted reels that store the memories or movies. They can repair themselves if damaged and are protected by a spell so that only certain people can access them.
One idea could be that the characters accidentally mix up their lockers in the locker room. They then have to figure out whose things are whose while waiting for their turn in the shower. It could be a comical situation with the characters trying to identify their robes, wands, and other items.
They could go on an adventure to find a lost magical artifact. The two of them would have to face various obstacles, like dark creatures and complex spells set to protect the artifact.