Here are some sources I've come across:
This is a website that was brought to my attention recently, it has shirts, backpacks and tote bags, all with simple designs inspired by various classic books, including, Anne of Green Gables, Little Women and Pride and Prejudice. To get 20% off anything in the store, use the promo code SNICKERDOODLES20 The code can be used an unlimited number of times.
Here are some pictures of things that caught my eye:
A little Women Tote bag
It looks pretty and simple, and comes in small, medium and large sizes (All sizes are the same price):
An Anne of Green Gables back pack
Comes in small, medium and large sizes (each the same price) and has a padded laptop sleeve (check the size of your laptop first, to make sure it would fit):
And a Jane Austen back pack inspired by lady writers. Again, comes with a padded laptop sleeve. And you can order the back pack in large, medium and small sizes, again all sizes are the same price:
And here are a few other sites:
This site has t-shirts, scarves, totes and posters with various classic literary themes. There are various images you can choose from, and if you look closely you will find that all of these images are actually made of up all, or part of the book, in very, very tiny font. My cousin bought my sisters and I a Jane Austen's Emma poster for Christmas one year, and you really can look closely at any part of it and start reading the book!
This lady sells elegant, pretty, literary Jewelry. It looks as though the shop is temporarily closed, but it should be back up again sometime soon.
Hobby Lobby has storage boxes that look like books. I love the antique looking ones. You don't need to by them online of course, they should have some in your local store in the section with storage boxes/trunks.