I like this gift idea from Salon:
Organize your friend's bookshelves -- by color, by size, by theme, or alphabetically, whatever she wants. Find a snowy Sunday, turn on "The Wedding Singer," "Prairie Home Companion" or the Ramones, and do the job your friend has always meant to do, but didn't have the time.
You can find an all-purpose, foolproof coupon to send, plus other ideas for bookworms here.
This is also cool: Designing your own book covers. Alas, couldn't find one for the USA Group.
And, not literary but oh-so-cool: Suburban Toile!