for our fall play we are preforming "register here" the set is like a run down hotel and there is a storm out side and we want there to be rain drops inside. we want soemwhere like 4-7 drops through out the stage. we want them subtle like a drop every few seconds and we want them to be random. for outside rain will use gobo rotators but for inside how do we go about this? our set will not be under our grid so all we have is the ceilign above the stage which we could possible drill a few small holes in it. we were think using soemthing like an iv dropper thing. any ideas?