I would like to take this moment to talk to my brethren who do Illusions.
I know you want to look cool. I know you want to make a flashy entrance or make something appear somehow or another. However, I would like to point out: Shooting bright lights at yer audience from a darkened stage then turning them on quickly to make something appear... ISN'T MAGIC!!
Maybe now that someone told you, cuz' obviously no one has yet, you can open yer eyes, save some cash, and do something interesting.