Here is the super simple recipe: 3 parts paint 1 part Plaster of Paris Water to mix
Cover flat surface with newspaper.
Place paint in bowl. Make sure you have enough to cover your board or object with two coats of paint.
REMEMBER: You can use any color of paint you want.
Add Plaster of Paris to the bowl. It should be about 1/3 of the amount of paint.
Add a little water...
Apply to surface
You will probably need two coats of paint.
And your done!