Here's a good way to use the mini socks. I crocheted a chain 22 inches long, attached the sock to the center of the chain, and threaded the ends of the chain through a pony bead from opposite sides. The chain is long enough to fit around a large book. Pulling the ends of the chain snugs the pony bead up to the book so the bookmark keeps its place. By attaching a small metal ring to the sock and to the chain where the sock is attached, the sock hangs freely.