Hi! I made this for the Hookers Only swap out of about four yards of batik fabric ripped into 1/2" strips, then single crocheted 'round and 'round.
Here it is filled with books:
And here it is out flat.
Other details: N-sized hook, braided some fabric for the button enclosure, awesome button courtesy of JoAnn's, and the strap was made by cutting my half inch strips in half, then crocheting with a K hook.
Thanks for looking!