Rainbow Dash and Scootaloo swap bodies. What could possibly go wrong?

A week after her coronation, Princess Twilight is killing time in between her lessons at the castle with Princess Celestia by experimenting with high-level magic spells. After a failed experiment, Twilight seems...different. But that's the least of everypony's problems. What started as a miscast spell snowballs into a series of events that threatens to plunge all creation into everlasting madness. Well, it has been an entire week. I suppose Equestria's due for another disaster.

Apple Bloom, Scootaloo, and Sweetie Belle, in another crusade gone awry, find themselves brought to a world very much like their own.

Except that here, Cutie Marks are considered evil and an organization known as the Cutie Mark Crusaders, composed entirely of blank flanks, fight to end the tyranny of the marked.

Adding to the fillies confusion and culture shock, their counterparts in this backwards world are heralded as some of the best the organization has to offer and are expected to battle alongside their fellow blank flanks.

Making things worse are the enemies they're supposed to face. What the other operatives call villains, a large chunk of them they call friends.

The three fillies must now find a way to return home and keep their sanity intact as all they have believed in is put to the most bizarre and backwards test of their young lives.

Twilight and her friends have all been discorded. They have lost all sense of themselves, their friendships and most of all, the Elements they represent. They now embody the Elements of Disharmony. Discord now controls them all. Can they be saved, or is Equestria lost?
Cover Art is by: SpaceKitty on deviantart.com :)
edited by: firebirdabirdoffire

(I also get into a little headcannon about Luna and Celestia but very minor and it's near the end ;p)

Twilight Sparkle, Princess Celestia's most prized and faithful student, is being sent to Ponyville to learn about the magic of friendship.

And she's not happy about it.

Hear what Celestia has to say back! Check out the spinoff:
Responses To A Disgruntled Friendship Student by keaton-furman-prower

Still want more? Have a multiverse spinoff by MixMassBasher, my contributing writer for Seasons 5-9.
Letters From Across the Disgruntled Multiverse

Editing by Neko Majin C.

Disclaimer:
The following is a work of parody, and is protected as Fair Use under section 17 U.S. Code § 107 of US Copyright Law. My Little Pony: Friendship is Magic and all affiliated characters are property of Hasbro Inc.

Gravity Falls x MLP crossover!

Dipper and Mabel can't sleep one night, so they go take a walk in the woods. In the woods, they find a portal, and Mabel goes through it. Naturally, Dipper goes too. Hilarity ensues.

Takes place between Games Ponies Play and Magical Mystery Cure, and before Dreamscaperers. Set in Dipper's perspective. Additional tags will be added when relevant. If you think the rating should be changed or have ideas for the story, I'd love to hear it.

When Dipper and Mabel find a magical portal to Equestria they meet the mane 6 and they all soon become friends. But trouble brews when the eight new friends must now join forces to stop Trixie and Gideon from taking over all of Equestria and Discord from making Gravity Falls into his own playground. These friends will need much more then just luck...they'll need friendship.

The time this story takes place is between the second and third season, so stuff like Trixie's and Twilight's battle, Discord being reformed, and Twilight becoming a princess has yet to happen.

Cover Art by: TheUltraVioletS on DeviantART

Late one night, Rainbow Dash is rudely awoken when a mysterious object plows through her house and crashes near Twilight's library. Inside it is an equally mysterious stallion that seems more than a little different in character to the ponies that find him. But when strange apparitions start appearing in Ponyville following this event, this stallion might be just the fellow to have on hoof.