I used $1 crafting paper from the $1 tree.
I plan on doing the handwritten style on when I get a chance to sit down and do multiple books for a covered book stack.
Shelf racks(ignore my crazy nails there).
How did I get it to stay? I first tried a tied piece of jute and it just didn't work well. I ended up grabbing a rubber band and that did the trick. I am sure you could try out other options like colored rubber bands and tying a ribbon or other decorative wrap around the rubber band to camouflage it.
I have seen the invisible bookshelves out there and they have clips but I am all about doing it my own way so this is what worked for me. I tried a few options just to see what it looked like. I tried out a dvd stack and a book stack. You could use your new "BOOK SHELF" it for whatever you want! It looks neat and it is picked up out of the way.