Graveyards are one thing you will find at most haunted houses. The ones that we have are very easy to make. First, cut a grave shape out of a thick piece of Styrofoam. Next spray it with gravel colored spray paint. It may need a couple of coats but if you use too much the Styrofoam may disintegrate. Next just use black paint to write an epitaph and decorate with what ever else you can find.
