A centaur is a human torso attached to the neck of a horse.
Now reverse it.

That image shall now snuggle your brain.

Of course, if you want to make more unholy combinations of human and pony anatomy, grow a head.

4696481 Is this a challenge?
If so, consider this project up and in arms.
Equestria is about to be stuffed to the brim with all manner of different interbreed hybrids between Ponies and Humans.
The Intermix train is picking up speed.
The first out is kind of an odd mix of counterparts you would most likely not expect here.
Even if we constantly see Pinkie Pie as an Anthropomorph in her full glory?

4911568
Well, any attempt would be better than mine ( the one lone fic in here). I wasn't what one would call "trying" but hey, if this starts something, I can sit back and laugh at it all.