DIY Wall Shelves of Used Drawers. I like this idea for repurposing drawers. Might be able to find an old dresser that has seen better days, with scuffs or crackers but that has interesting drawers, that I can pick up for cheap at a yard sale.
Kitchen or anywhere DIY. Seems simple enough, depending on your gap between shelves, anywhere from ropes to ropes for your spacing. You could even use wider wood, just adjust your rope length to accommodate your width and height of your shelves.