Awesome animation practice, if you ask me. If you are an animator and you need to get your 3D thinking going, you better do this. It didn't start as a practice piece. I was doodling stuff this weekend, to take a break from commissions, I doodled this one picture (which you can find here), and I've decided that her hair looks sooo majecstic there that it deserves to be admired from every angle. If you seek happiness, grab the doodle of yours that you particularly like and play around!
Done with Adobe Photoshop CS6, 71 frames, 14fps, one turn takes almost exactly 5 seconds.