The Doctors greatest incarnation finds himself in Equestria when the Tardis does an emergency landing. I'm pretty sure you can guess what happens next.
Twilight never became an alicorn princess and instead lost her life as a result of Star-Swirl the Bearded's unpredictable spell. But being dead doesn't prevent Twilight from visiting those she cares for...
When Twilight Sparkles from alternate dimensions begin popping up in Equestria, it is up to Scootaloo to round them all up and find a way to send them home and retrieve her world's Twilight.
As a fan of the show, I always loved Rainbow Dash and her cutie mark, but I never wanted it to appear on my leg! Now that it has, all sorts of things are getting weird around here. I'm a guy, not a mare! Cartoon ponies aren't real... right?
A human soul is stuffed into King Sombra's body. Having no idea what's going on, and thinking he is in some kind of coma, he just casually strolls into the Crystal Empire.
A human-turned-dragon finds herself in Ponyville... After spending a decade as a globetrotting adventurer. The only problem is that Ponyville is the very last place she wants to be, for a fact as plain as her appearance.