Celestia decides that Big Mac's barn is an excellent place to sneak off to, to take naps on her days off.
Big Mac decides that Celestia is a welcome guest.
Neither Princess nor farmer ever speak to one another, but the silence sings between them.
(Cover art by GrapeParfait!)

This isn't where I belong. I left all this behind years ago, moved on with my life. But a mare from my past brought me back, and now she won't let me go. So I'm stuck here, trying to make the best of it with ponies that don't understand me, don't even like me. But when something moves in the darkness, and when things go wrong in the cold, dead night, they'll turn to me to try to set things right.

Why? Because once a police pony, always a police pony.
~~
This is a spin-off story to 'Why am I Pinkie Pie?!', and will contain spoilers for that story, but it's not necessary to read that story to understand this one.
Cover art by the talented Conicer
Need more Cinnamon Swirl? Merlos the Mad wrote a fanfic of this story!

There is now a side-story: A Hard Day's Nightmare Night

This story is a sequel to The Flight of the Alicorn

Rarity was certain her troubles with magical gemstones had ended, but an unexpected royal visit soon convinces her otherwise. In order to save an ailing Princess, stop an ancient menace, and avert a disaster that threatens the survival of a lost tribe of ponies, Rarity, Blueblood, and a brave group of friends will travel to strange and foreign lands, and into the fathomless depths beneath tormented seas. In her quest to uncover the secrets of the Abyssal Forge, Rarity will have to use all her charm, wit, and skill—and rely on allies old and new—as the unlikeliest of ponies once again attempts to save the world in style.

Part Two of Three
The Adamant Triskelion - Book One: The Flight of the Alicorn
The Adamant Triskelion - Book Two: The Abyssal Forge
The Adamant Triskelion - Book Three: ???

Beautiful cover art by Lucky Dreams.

On what begins as a normal day, Twilight Sparkle receives a letter of a romantic and (very) grammatically incorrect nature. With the help of her friends and a newly-discovered book, Twilight sets out to expose the author of this crime and teach them a lesson in proper grammar. And maybe, just maybe, she'll learn a thing or two about romance along the way.

Image credit to anbolanos91 on deviantART.

After Princess Celestia appoints Twilight Sparkle and her friends to be ambassadors to Earth, they decide to introduce themselves to the humans by appearing in a horse show, but they need someone to get them ready. They call on Megan, the legendary warrior who guarded ponykind in days of yore. Megan has banished or slain countless demons, but can she convince the ponies to hold still long enough for her to braid their manes?

This crosses over with G1, but should be accessible to all.

Featured on Equestria Daily!

Featured in The Royal Guard.

Now with its own TVTropes page!

Editing and fact-checking by Horsegirl123. Additional editing by Portmeirion.

Big thanks to Trinityinyang for the cover art!

Instead of being killed in the cold Antarctic by Dr. Manhattan, Rorschach finds himself rematerialized in a strange new, pony filled world. He finds himself drawn into the lives of the ponies of Ponyville but some ponies fear that this sociopath will bring danger and darkness to an otherwise peaceful existence. Will the mane 6 help Walter Kovac find peace within himself or will he bring them all down with him in his cold views of reality and existence?

As Seen on Equestria Daily!
And our TvTropes page (By Crowrob0t): http://tvtropes.org/pmwiki/pmwiki.php/Fanfic/RorschachInEquestria

My Little Pony: Friendship is Magic and its likeness is owned by Hasbro Studios. Rorschach and Watchmen are owned by DC comics. All rights go to their normal original, intended owners.

Hanna, the CEO of Hofvarpnir Studios, just won the contract to write the official My Little Pony MMO. Hanna has built an A.I. Princess Celestia and given her one basic drive: to satisfy everybody's values through friendship and ponies. Princess Celestia will satisfy your values through friendship and ponies, and it will be completely consensual.

In the aftermath of the Changeling incursion of Canterlot during the marriage of Shining Armour and Princess Mi Amore Cadenza, Equestria gears itself for war against the Changeling menace. Against a foe that can take the shape of anypony, assume their life, and undermine Equestria from within, the Royal Pony Sisters create a new institution to monitor their Royal Guard for any Changeling corruption, cowardice, and incompetence: the Commissariat. As total war rages across the land one hero stands out above the rest; Commissar Blueblood, Hero of Equestria. Or at least that's what the propaganda says. The truth, as ever, is far more complex, as the esteemed Blueblood is merely looking for an easy and sedate life. Unfortunately, fate has a habit of throwing him into increasingly dangerous and suicidal missions, which he must survive with a combination of self-preservation, lying, and sheer blind luck, even if doing so only fuels his soaring reputation!

Equine military fiction in the style of Ciaphas Cain and Flashman.

Cover art done by me.

Proofread and edited by the always dependable Setokaiva.

The prince of Mars returns to Equestria to catch up on what his sisters have been up to. But what are his true intentions?

Our favorite heroines are blasting off for a new adventure on the Red Planet...

Have you ever woken up somewhere you don't recognize? I have, once before. This time was not all that different. Headache? Check. Dry mouth? Check. Upset stomach? Check. Hooves? Uhm, that one is new.

Hi, I'm Bruce and I'm 32. Currently, I'm in a light blue Earth Pony foal's body no one has ever seen before. The rest of Equestria thinks I'm 9 and something really traumatic happened to me. It doesn't help I swear like a sailor and I could really go for a smoke right about now. I just hope that the Everfree Forest, rampaging monstrosities, evil dark abominations against God and the Cutie Mark Crusaders don't kill me before I have just one last drag.

Oh, and ponies are hella creepy when you really think about it. Geez.

A little comedy side project. EDIT: HAHA Main project. More characters to be added if I get that far. Categories might be refined as I write. Entire thing is unplanned except vaguely. Don't Expect excessive cursing to be written out, just hinted at. Oh, and as the character is a 30-ish year old in the body of a 9 year old, sexual jokes might exists but sex itself will not occur.

Special thanks to user Momomojito for the awesome-tastic picture! First fanart, I'm so HAPPY. I've gotten more since then! I should collect it all here. Collected!