Because his dad got transferred by his boss, Emerald Key and his family move to Ponyville for a year. While continuing his education, Emerald becomes attracted to a certain gray earth pony with glasses.

The tap-dancing conga tarantulas go on tour. Dissonance is simply overjoyed. Mental and Riddle are not.

Crackle finds her long lost cousin on a walk.

'Crystal Joke' a is at his lowest ebb. He's chased by the bottle and despite his successes at a stand up comedian finds his life empty. When all is lost a mare steps in to turn his life around, weather he wants to or not.

A series of short stories about Applejack and Rainbow Dash's relationship. Bittersweet.

Exiled from home, what's a pony to do in the wasteland? A story about loss, isolation, and coming to terms with a terrible past.

Daring Do and her annoying subconscious go on a vacation doomed for disaster.

(2nd Person) There are a few ways to drive an Obsessive–compulsive disorder Unicorn crazy. This story teaches you how.

Maud Pie is called in by a struggling rock farmer who has a new pony working for him: This disgruntled unicorn is the toughest case Maud has ever seen. (Short story as an entry for EQD writer training grounds/No such thing as a simple rock farmer.)

Mercury and his sister were never that lucky in life. Their parents disowned them, the orphanage wouldn't take them. Without any money to support them, Mercury turned to a life of crime in exchange for their bread and butter.

A collection of thoughts from each corner of the land.

For a certain stallion, all hope seems lost when he can't find someone he can call, "My Special Somepony", until a weird mare gives him hope again.

Golden was rather lonely, living by himself in a small, one floor house outside of Baltimare. He yearned for the companionship of another, and would wait for years to come until she found him.

All his life, Shin has been labeled as weird, crazy, and creepy, but when he moves to Ponyville, a batty little friend helps him realize that he's not alone.

Probably not the kind of "crossover" story you're all thinking of.