There's no such thing as starting too many threads, provided each is unique. AND productive. I've never heard of a liquid gobo, but very much like the idea. Need a rotator, of course. Or, if in a moving light, finally a reason to use the "shake" feature of some. I'm guessing the effect you're seeking is similar to the one here. [media]http://www.youtube.com/watch?v=Q1cfTMdjkYM[/media] As discussed in this thread: http://www.controlbooth.com/forums/lighting/7004-liquid-lighting.html?highlight=psychedelic. For only ~$50K, a media server and high output video projector will give you something almost as good. Feed your heaaaad! [user]Kelite[/user]?