I need a rainbow gobo for a show. It will be in use for about 30 sec. now here's the problem... Our gobo lights are about 100 ft directly above a staircase that goes to the stage. We have a lift but it would be a pain to use on the stairs. Would it be possible to make the gobo using an aluminum pie plate and hold it infront of the spotlight in the booth? I know its crude but its a quick 30 sec. thing and im not gonna spend an entire day replacing a gobo....