I've had a lot of fun using flour in different ways for some photo shoots. Here are two different action based shots that I did. My only complaint with the jump rope one was not being able to catch a pose where I had anything but a puckered up look with the mouth. Blasting flour from an air cannon and not wanting to breath it in was the culprit. c&c welcome.
Tried this with a young girl doing ballet shots and throwing flour. Got some lovely shots but also probs with facial expression as she did not like the flour all around her :-)