This page is every single idea on one page, almost all of them are in the order I came up with them.
Non-Being (Being Worked On)
A FMA:B and Harry Potter Crossover
Whenever a wizard in the Wizarding World vanishes an item, it goes into non-being, also known as the Truth, or gate. Maybe one shots of the ridiculous things that get vanished into the gate?
The Void (Not started)
An Undertale and FMA:B Crossover
The void is a place for beings with the ability to move between worlds, and for one such being, he has arrived there by accident. (Sans is in the gate with truth, they hang out and he takes truths place. Then visits Amestris while on break and screws around. OP!Sans, Truth!Sans)
The Arbiter
A Harry Potter and Death Parade Crossover, May add other X-Overs
(After being in Azkaban for years after having been said to have killed Cedric. He was in a time chamber, not aging, but with dementors for years) Harry is marked as the Arbiter by magic, and judges all major events in time, if it is a major branching point in time. May start with going through Harry Potter timeline, then jumps to all other shows. He judges as a non biased viewer, and is Grey. Snape is his ally, and representative for smaller matters. Doesn't care about relationships or emotions. Eventually goes to Death Parade world?
Legilimency Issues (Being Worked On)
An Inside Out and Harry Potter Crossover (AU)
When Hermione's daughter Riley is having emotional issues, she calls one of her friends from school for help. Unfortunately, Legilimency is not 100% reliable, and when accidental magic is thrown into the mix, well...
The Heart of Alchemy (Being Worked On)
A FMA:B and Moana Crossover
"So you're telling me," Edward Elric began, "that all I have to do is: go to another world consisting solely of islands; help some princess find a Demigod, which is bullshit, since I don't believe in Gods; and force him to return the one thing sustaining the world, which is a naturally formed Philosophers Stone made from Nature herself. Welp, shouldn't be the strangest thing I've ever done."
Aurum and Argentum Oculi (Being Worked On)
A RWBY and FMA:B Crossover
There are two humans, both if different worlds, destined to save their own world. One of Silver Eyes, and one of Gold. What if the God of one world were to mess up when one of them died?
What's Your Favorite Fairy Tale? (Being Worked On)
A RWBY and Harry Potter Crossover
After telling the story about the Maidens to Ruby, Qrow passes out. He awakens to find himself in a bar, completely fine. He soon discovers magic, manipulative old men, another corrupt government, and a shape-shifting dog. That bottle of Firewhiskey is starting to look pretty nice...
A Man with Two Souls (Being Worked On)
A RWBY and Harry Potter Crossover
Ozpin is reborn into a new body when he dies. What if these lives weren't always in the same world, or time? (Ozpin in Harry's Body) (Will go into Remnant Later Maybe)