Ingredients:

1/2 cup plain flour
1/2 cup salt
1/4 teaspoon essential oil (your favorite scent; Perfume or citrus oil, etc.)
2/3 cups boiling water
Food coloring, if desired

Preparation:

In bowl, mix dry ingredients well.
Add essential oil, and boiling water to dry ingredients.
(Scent will be strong because of the hot water, but will fade slightly when dry.)
For colored stones, blend in food coloring, one drop at a time until desired shade is reached.
( Red and Green with varying amounts of Blue to darken it, will make brown)
Blend ingredients, and form balls.
Allow stones to dry.
Store in a plastic baggie to keep fresh until you are ready to use.the stones.

Place rocks in a bowl or dish to scent a room.
A nice alternative to potpourri!

Use a cookie mold, etc. to form them. Your imagination is the limit to the uses.