Sand art is absolutely beautiful. It's pretty cool what they can draw and do. I used to watch these videos and others on youtube all the time. I'll have to find one video that was absolutely breath taking.
I'm going to move this to Arts and Crafts. I think it's very beautiful. I haven't seen one done before. It reminds me of what Hybrix posted last week, but that one is speed painting (also set into music like this one and the finish product looked like real pictures).