I will be buying a vasic overhead projector this weekend to help in painting some large wall props. I've been wondering about ways to use it in this years haunted house. I was thinking about mounting it to shine down in the spider room. I'm wondering if I make a page in purple color and then cover it with tiny little dots to project down onto the people if it would give the effect of bugs on them. Even though the projection would be still their own movements under the light would make the " bugs" crawl. Has anyone tried something like this?

Sorry for any typos. Im using my phone and Im a terrible texter.