Since it was Sunday, I decided to work on something for my own enjoyment. Not being a pegasus or unicorn, the half-humanization doesn't really have that many pony parts... Oh well... I always liked Cheerilee's design, so I was glad when she got a more prominent role in an episode (a pretty hilarious role at that). They always seem to pull off great characterizations.
I put quite a few hidden things in this picture. You might not be able to see all of them without viewing it at full size.
The blackboard is of course playing on the fact that the first time her class was shown, she had up some pretty strange mathematics.
Edit: Made an attempt to fix the eyes.