The aging techniques described in the past few blogs (using a color wash, scratching the surface, adding powdered smudges with eye shadow) can also be applied to patio surfaces. The first patio is made of Paperclay which shrank when it dried and left some nice cracks between the stones I carved into to. I filled these with natural dried moss, The second patio has mortar mix covering the uneven surface of plaster stones and this took the color wash and the powders nicely.