Voldemort learns of a new prophecy where he is defeated by 'Laughter and Fire'. Not sure what to make of it he does nothing, and Harry has a little fun. One shot.
Ron jumps into a Dragon Pen and is now in St Mungos. When he wakes up with questionable sanity his friends have no idea what has caused him to go crazy. Fred and George do.
Luna's daughter, and George's step-daughter, Monelleria goes to Hogwarts and meets Vandraedi, Draco's daughter, so naturally chaos is one step away. Monelleria is a parselmouth and Vandaedi is a Dragonspeaker. Why does Ron have it out for them?
Fred and George enchant muggle games and hide in the Chamber of Secrets, but the Basilisk is still alive. And not at all like anyone thought he would be. (Poll up to decide what to do next! Please read and vote!)