Look!: Tube Shelving

Check out this shelving system — it's made from cardboard forms for concrete tubing. Instructables user nagutron had set the tubing aside to make speakers, but we think these shelves are a great looking, practical application of the material. Nagutron made flat surfaces within the tubes out of books, but one could just as easily make the bases out of plywood, sheet metal or glass. See the entire slideshow here.