By Shawn and Lynne MitchellMore in Decorating
When the mud coat is completely dry, paint the raised surfaces with a darker gray (or black and white paint mixed together) craft paint and a wet brush. Some of the mud color can be left as is. This will help to achieve a more realistic stone color.
Once tombstone is dry, paint any carved or low surface areas with black craft paint and a small brush. This will help the details to stand out. Let dry.
Using a dry, wide brush and a small amount of white craft paint, gently drag the brush over the tombstone surface. High surface details will catch the white paint and give the Styrofoam the look fo stone.
To add a layer of grunge, use a very wet brush and some brown craft paint. Stand the tombstone up and starting from the top, let the wet paint drip down the surface (image 1). Let dry. The completed tombstone is perfect for any graveyard or Halloween setting indoors or out (image 2).
Lynne and Shawn Mitchell have a website called How to Haunt Your House. They have also authored How to Haunt Your House books I and II.