I think it would look cool, but if you were on stage, people wouldn't be able to see the pattern.
It reminds me of a finish I saw once where someone actually used water, to make a water-drop pattern. They sprayed water on a guitar such that it made little droplets, then sprayed white, grey, and black paint on it, and when the water-drops dryed off, there was a pretty realistic water-drop pattern on the guitar. It looked really cool, but you really couldn't tell what it was from more than 10 feet away.