I was gifted a copy-paper box full of someone's left-over yarn last week (yippee!). Some of it is baby yarn, but there is a decent amount of worsted weight Red Heart yarn. I've been playing with the idea of crocheting something 3D, so I figured this was a good opportunity. I did not make my own pattern though. I can't draw a horse, so I probably couldn't design a 3D horse in yarn. :) I found the following pattern, titled Balloon Animal Horse on CrochetPatternCentral.com (my favorite pattern directory).
I haven't finished mine yet. It will be a white horse, and I will of course post my own picture when it's done.