In spite of Spike's valiant efforts, he and Princess Ember fail to stop Garble from getting to the Bloodstone Scepter. Having heard Garble saying that he'll take whatever he wants from Equestria and burn the rest, Twilight decides that she and her friends must remove the bad dragon from power. . . .

. . . But things are rarely that straight forward.

(Written after Sweet and Smokey.)

Sandbar is excited because he just won six tickets to the Buckball World Series in Fillydelphia. After informing his friends of this great news, he proceeds to talk about the Fillydelphia Fillies, which includes telling them the names of the players.
That's when things get complicated.
Based on Abbott & Costello's Who's On First? comedy routine

After the events of their first Hearths Warming Eve together, and the revelation about Gallus' family, or lack there of, Silverstream comes to a shocking realization: Gallus has never had a birthday party! Silverstream decides to correct this as soon as possible, so she recruits the rest of the Young Six to put together a surprise birthday party for their griffon friend.

However, as all of his friends are busy planning this surprise, Gallus can't help but feel that his so called friends are avoiding him. Feeling alone and abandoned on this day, Gallus unknowingly finds himself in a vulnerable position ripe for manipulation.

Lawful Crane and his girlfriend Pearl Lane happen to be in town during Anon-a-Miss' reign of terror in Canterlot High. Crane, being a skilled detective, is easily able to determine that Sunset Shimmer is being framed. Having devoted his life to protecting the innocent and punishing the guilty, he decides to expose the true Anon-a-Miss as an invisible avenger known as The Shadow. Through the use of a mysterious hypnotic power he learned in the far East, he is able to cloud other people's minds so they cannot see him, rendering him invisible.

Soon, Anon-a-Miss will learn that the weed of crime bears a bitter fruit. . .
Crime does not pay. . .
The Shadow knows!

This is a crossover with The Shadow Radio Show (1937-1954), a weekly radio program that dramatized stories from the pages of Street & Smith's Detective Story Magazine.

In this alternate ending to School Raze- Part Two, Cozy Glow absorbs all of the magic in Equestria and turns into an all-powerful Alicorn. In response, the Tree of Harmony powers up the Student Six so that they can fight Cozy Glow and take back the stolen magic. It will be the most epic battle Equestria has ever seen, and the fate of the entire world hangs in the balance. Can the six young creatures pull it off?

Of course they can, but that doesn't make the epic battle any less fun to watch.

After her friends come to her aid during a time of need, Ocellus undergoes a dramatic transformation. This results in a flurry of new emotions and worries that cause the Student Six to fear that their friendship is in jeopardy.

The other five members of the Young Six all know about Silverstream's old life as a seapony, and they've all seen her in her seapony form several times already. However, during a nice, relaxing field trip to the seaside, Silverstream's elegant seapony form begins to entice certain feelings within Gallus and Sandbar.
Will Ocellus, Smolder, and Yona be able to bring things back to normal? Will they even be able to keep these two boys' emotions in check, and their hooves/talons off of Silverstream's ravishing tail.

The Mane Six and Starlight had chalked up the events of their hike to each of their flaws simply getting on everypony else's nerves. However, upon their arrival at the Tree of Harmony, they will soon discover the truth of their tumultuous hike. Although, there is a chance they won't be able to survive learning the truth.

Spoilers for Season 8 Episode 13: The Mean Six

Applejack travels through space and time.

A "deconstructed" Ice Age crossover. My own unique take on what it means to be a crossover. I’m going to try to capture the essence of Ice Age’s surreal humor and the absurdity of its situations, while also basing this FanFic's plot on the concept of one of the animated shorts from the Ice Age franchise, rather than simply merging the stories.

Also, this FanFic is a flattering parody of Austraeoh by Imploding Colon. This means that it will be a very long, ongoing, and possibly never-ending series of short chapters focused on one single character.

For those who want to figure out what the title means:
Old Norse Dictionary
Old English Dictionary

Applejack's investigation of the Flim Flam brothers' newest scheme will lead to a chance encounter with something that Equestria has never seen before. Starting with one new friendship, and then six new friendships, the gap between two worlds will be bridged, and the Equestrians and Fœnumians alike will discover just how close their worlds really are.

Them's Fightin' Herds crossover.