I put together a working version of my desktop pony from what I have so far. I'll be adding to it in the future, but I'll just update this instead of uploading the gifs separately. See it in action here.
Instructions: Unzip the download and drop it in your "Ponies" folder within the desktop ponies directory. It should detect it automatically.
Base source is the Doctor Whooves gifs and others from Desktop Ponies.
Acceptable use for Desktop Ponies: [link]