One of my crafty bffs made this... so cute. 10$ 30x34 wall calendar. Pick up a large picture from a thrift store. Draw lines and days of the week on plain white paper. Then use dry erase markers on the glass to write #'s and month. Super easy and cheap!
Hardware found at lows. 4$ each you need 2. Poles found at lows. 2$ each. Fabric Walmart 1.50$ 1 yard needed. Total cost of sling bookshelf - 13.50$ hand stitched because I don't know how to use a sewing machine. Super easy!