Performance Sparkles?

I love the effect that Karol Helms has during this performance: http://www.youtube.com/watch?v=w6axINmdrns (Besides the routine being amazing!) I started to wonder what she might have used to make her whole body sparkly, but that wouldn't interfere with grip. I don't exactly want to find out during a performance that I'm going to have major grip issues because of something I used to get body sparkles.  But, sparkles would be so so messy, that I also wouldn't really want to practice a lot in them (i.e. no more than once probably). Just wondering if anyone has any ideas? Or has had experience with a certain product? Thanks!