I have seen these a few times and I thought they were made from real drawers and I have been searching the garage for smaller drawers but now I know and will be making some I have a perfect place for them
http://www.designsponge.com/2009/07/diy-project-morganes-drawer-hangers.html
http://www.designsponge.com/2009/07/diy-project-morganes-drawer-hangers.html