Could you turn your book into a museum? That is what Nobel Prize winning author Orhan Pamuk did with his book, The Museum of Innocence . You can read about it here: A Nobelist's Novel Museum
While this particular book is about a museum (and no, I haven't read it) and lends itself to this idea very easily, it is a very interesting concept. What are the worlds that we create in our stories? What objects would represent them? I have been to author's homes which have been turned into museums, and it is always interesting to see what items influenced, or made guest appearances, in their stories.
We live in a physical world. Our stories do as well. Perhaps we lack the money to create a whole museum dedicated to one of our books, but it is an idea to ponder. If we could, what would we put in it?
Pamuk reflects on his museum: "Novels are about preserving the ways we feel, detailing the ways we hold objects, the way in which we smell something," he explained. "Even in a novel of 600 pages, the details of objects fade away, but we never forget the sentiments those objects generate.
"A novel generates these sorts of sentiments in us," he added. "This museum is more about those sentiments than the story."