Because someone asked for it.
If you need an explanation, you haven't been to see the new My Little Pony show yet. Ergo, go watch it. NAO!
To use, simply download the PNG file (I.E. Copy the picture above), and then upload it on Minecraft! Then run around and collect muffins or something.
I don't know.
I don't own My Little Pony, or Minecraft. Subsequently, this was made possible by the powerful Skincraft creator on Newgrounds.