There are many types of stains that you can use for your project. For example, you can use a stain called "Copper," which darkens wood and copper metals. It also has the effect of preventing tarnish from forming on metal items. You can also use a stain called "Brown," a mix of iron oxide and brown sugar to give an aged look to furniture or leather. Lastly, you can use a stain called "Paint" applied by mixing it with water and then brushing it onto the surface where you want the paint to go.