Description:
This is something that i use to do for easy cash, playing with house hold chemicals over an overhead projector. Combined with previously edited videos (through video projector), decent sound system, a Dj/audio artist/your own selected audio compilation, and your choice of hallucinogenics/mind altering substance, This thing would create a whole new "experience". Handle with care!!

Ingredients:
-One Overhead Projector unit. Overhead projectors are boxes with a glass top with a lens on one side and lamps and mirrors inside that projected images on a translucent media that's put above it. Usually used on lectures at colleges, meetings, etc. before replaced by video projectors+lap top computers. Similar with slide projectors, but not limited to project images from photo-slides.
-a stable table ( all legs on equal length so it wouldn't shake)
-Electrical equipment (Cable extensions, T-socket, multiple port, stabilizer, Mini generator set if no electricity available)
-A translucent plastic cover for your OHP (so it wouldn't get smeared by the paints n liquid)
-Black cardboard
-Black rubber tape
-Trash bags (keep it tidy!)
-Rubber gloves (workin with chemicals, remember?)
-Containers (pipettes, ketchup bottles, etc.) and "formers" (paintbrush, toothpick, etc)
-Any kind of paint (as long as it can be made translucent with a solvent medium), and liquid (oil, water, syrup, soap, thinner, etc). experiment with the nature of the liquids (e.g. oil can't mix with water, thinner evaporates over heat,etc)
-A dense glass box with no top. Similar with a small box aquarium. Size are optional, but the bottom square are usually the same size as the OHP's glass top. You can use any number of boxes.(e.g. a couple of smaller boxes or one big box or several tiny boxes)
-Any kind of translucent (e.g. photo-slides, plastic book cover, straws, etc) or non-translucent object (e.g. paper, pebbles, spaghettis, toys etc)
-Air pump. Usually used on aquarium tank to pump oxygen into the tank.

Directions:
-First, prepare the overhead projector and the surroundings. Cut the side of the plastic bags and cover the table where you put the OHP on. If necessary, cover the ground under the OHP with it(especially if you're playing indoor). Cover the OHP itself with a clear plastic (careful not to cover the side ventilation so it wouldn't overheat. Overheated OHP tends to shutdown automatically before the light bulb inside it breaks from the heat).Cover the side of the OHP with black cardboard (lower part of the black cardboard is positioned about 2 inch from the ventilation) so the light wouldn't leak. Position the OHP and the table near by an electric socket or use an extension. Put the paints and liquids and whatever you're going to use in good order beside the OHP (after a while it tends to be chaotic, so it's a good idea to start tidy)
-After finishing the preparation, position the OHP across the area you want to project.It can be a bare wall, a long piece of cloth, side of a building, you can even shoot it to a bunch of people (e.g. people dancing, people crossing the road, factory workers, etc.).Also consider the distance between the OHP and the projected object (closer distance gives brighter clearer images, further distance gives a wider images). Try shooting at diferent textures, tends to give different effects. Another thing, try using your environment, rather than just using it as a backdrop.
-Place the glass box on top of the OHP
-Start experimenting and have fun!!