Tiny Book Pendants

Choose some small pieces of pretty thick paper, or cardboard. I cut mine out of an brochure for a coffee place, and was lucky enough that the space between the pictures were perfect widths for spines of the mini books, but you can achieve this by sticking any two pictures onto a piece of paper in between to create a spine.
Take a thick magazine or anything else with a pre-bound spine, and cut out rectangles slightly smaller than your book covers, making sure to keep the spine intact.
Take some sewing pins, and bend their tops into a circle big enough to pass a chain through.
Glue the straight bits of the pins into the inside of the book covers, then stick the paper in afterward.