Tie a dressmaker's tape around a book about body image. Here it is wrapped around SKINNY. You could do it for WALKING TALL, a terrific nonfiction book about being short or WINTERGIRLS or LIFE IN THE FAT LANE, SKINNY DIP, DOES THIS BOOK MAKE ME LOOK FAT? Or tie a piece of twine with a key around a book like this one:
This one, I think, could be used for mysteries, for romance, and for some fantasies given the wonderfully ambiguous symbolism of "key." Haunt the hobby stores for other tiny items that might be tied onto a book, right?
We talked about this in the doctoral class this past week. Rebecca commented on the packaging used for FIERCE READS, books that are shipped in bright red bubble mailers with that label on them. I recently received the new Joan Bauer in a silver mailer with a sticker with the book cover on it. I can see buying these in bulk and "mailing" them to individual students (and if you use some scotch tape instead of the mailer's sealant, the envelop could be reused.
Do you have scraps of fabric or wrapping paper? Wrap books thematically. Striped materials for AL CAPONE SHINES MY SHOES. Fringe for THE DIVINERS. The possibilities are endless.