I went into Emma's room to get her out of her crib - she was resting because she's got a little bug. Anyway, when I walked in she said "horsey". I wasn't sure why. Then I figured it out.
She took her pillow, stood it up on the long edge, put her hand on the railing and climbed on her pillow like a horse. Then, she jumped up and down like one of those "bucking bronco" rides. It was really quite funny and she's laughing and saying horsie the entire time!
Couldn't get my camera fast enough to have photos - maybe she'll do it again.