Lightning is also an easy effect to accomplish as well! There are many different tools to use to achieve the effect, but the easiest is to go and get yourself a white paint marker from any craft store. If you look at lightning, there is no set pattern, only jagged lines and branches coming off the main line. Get yourself a piece of paper and practice making jagged lines until you feel comfortable doing it on a body. Like I say, its random, so it's almost impossible to screw up!
All you have to do is now take the body, draw on your lightning. Since you want to give it a glow, take some light purple (water based is best) and shoot a fine line behind your lightning. Now all that is left is to fill in your background! Darker colors work best to give the lightning some pop.
there are alot of cool tricks on that webpage,I went through it when it was previously posted in another thread.I can't wait to try out some of the tricks listed on it,I just started practicing using old 2L plastic coke bottles.