Even of its corny, even if your professor doesn’t end up displaying or using what you get, I think it’s a lovely idea to get something tied to books or authors she loves. At the end of the day, the item itself isn’t significant—it’s a token of how meaningful the relationship has been, and what you’ve learned from her.
Think about the gifts you’ve been given. Imagine one relative gave you a really nice sweater, something classy but a little generic. Another gives you a painting of your pet. Which are you more excited about?