a pillow (or just the case) would be cool, something to snuggle up with while reading? maybe i'm just obsessed with pillows. i think some people might like the tote, so it would be cool to do the book, bookmark and then one other med-large item, whether it be a tote or a pillow, or something like a shirt or piece of jewelery that goes along with the theme of the book.
Pillow case with a pocket for the book!!! Sorry, by boyfriend has one and I love it to death.
Oh, and I'd totally be down with this swap.