A while ago Smudge uploaded a picture of Twilight Sparkle as a cat, called Twilight Purrrrple. >>1439129  
She was actually a part of a series of images I got from him with the M6 species-swapped to various farm-animals: Raricow, Piggy Pie, Goatjack, Rainbitch Dash, Twilight Purrrrple and Squeaky Shy.
 
 
Here is another one of those pics.
 
Let’s start off with the the most popular of the bunch, Raricow. Rarity as a nice fat and lazy cow, mindlessly chewing on some hay as her big and heavily engorged udder gets milked with an industrial cow milker. She is also carrying a calf, although not at full term yet. After all a good dairy cow needs to be bred regularly to ensure proper production.