They are VERY easy to make. They are the backs of plain dominos. I then use rubber stamps (a couple of these are from Tim Holtz) and stamped the images in Stayz On permanent ink brown. Then I rubbed the sides in the same brown color ink to finish them.
Upcycled Furniture Projects - Upcycled Drawer Planter - Repurposed Home Decor and Furniture You Can Make On a Budget. Easy Vintage and Rustic Looks for Bedroom, Bath, Kitchen and Living Room. http://diyjoy.com/upcycled-furniture-projects