Obviously being posted at the beginning, is a tumblr featuring my own OC:

Ocean Bird (NSFW)

Here, I am going to list a bunch of links to pony tumblr pages. For entertainment. Feel free to post whichever ones you have in mind.
18Carrot
Aquarium Ponies
Ayasha
Backy
Berry Sweet
Billie the Kid
Bon Pun
Buttercheese
Celery
Cheerilee's Chalkboard
CMC
Cookie and Bran
Copper Wings
Crackpot
Custard Cream
Dawn Star
Discorded Dr.Whooves
Dr. Adorable
Emerald May
Filly Scouts
Filly Twilight Sparkle
Flatmares
Frigid Drift
Golden Pen
Grey Mouse
HeartCall
High School Cadence
IE Pony
Incompetent Lightning Dust
Isle of Forgotten Dreams
Inkie Heart
Ivory Lace
Jade Shine
King Sombra
Laydee Kaze
Life in the Milky Way
Lost Pony in Minecraft
Lovelace
Luna Afterdark
Luna Afterdark Afterdark
Meanie Belle
Movie Slate
My Little Changeling
Night Watch
Palette Swap
Paradise Pony
Pencil Scratch
Pixel Cupcake
Princess Cadence
Princess Molestia
Pun Pony
Purple Melody
Pylon Pony
Question Pinkamena
Shinta Girl
Shiny the Slime
Shiver Snow
Silver Swirl
SnowDrop
Slice of Life
Sparkles and Dashie
Spirit
Spitfire the Wonderbolt
Stalkerloo
Starcatcher's Corner
Sugar Cloud
Sunset Spring
Surprise
Sweet Star
The Console Ponies
The Elements of Harmony
The Moth Ponies
The Vet Pony
The Zodiac Ponies
Three Apples
Throwing Things at Fluttershy
Twilight Sparkle
Twily Daily
Twitht Hate Mail
Unie
Velvet
WTFPonyFanFiction