Ah, I do draw my best when I'm procrastination on finishing a statistic project due tomorrow...
I was just sketching with no real purpose besides to push off my school work, and well -- I like what happened.
Sketch, started out just a random horse head (left horse) it was actually a unicorn at first... Then I liked it enough and then thought about making it a pissy stud, so I flattened it's ears, slightly rotated the head and made his eye all white-eyed and stuff. But, I didn't want to make an angry pony, I wanted a happy pony! So, then I thought about another buddy horse for him, and that's how pony number two showed up!
I like them enough I might actually do something with them, but I doubt it.
No references, just having fun!