Obleeek2...But a smaller much cheaper version could be recreated using plaster of Paris or concrete mix. You need one large and one small plastic bowl, and a little plastic bottle cap to be the mold for a drainage hole at the bottom of your planter.
built a simple mold with 1/4" X 3" poplar stock from the local big box hardware store. Then I used 1/4"x 1/4" square stock to make a decorative pattern. The whole thing was held together with grabber screws. I used Vaseline as a release