I have many alternative worlds, all on my bookshelf. Working at BookLikes.com Say hello: kate at booklikes dot com
I've found this pic among reading tips for parents and teachers (Reading Tip: Raising a Well-Read Child) as a play to start a conversation about literature and different aspects of literary genres with children. But I think it's a great idea not only for kids and can be used not only for book-related topics, e.g. as a word map for exploring new vocabulary or brainstorm while writing a story.
You can cut out the puzzles, color them and write words, phrases, ideas, characters, even wishes. I've seen marvelous wooden puzzles with wedding wishes. But it would look great as a gift, let's say for upcoming Grandparents' Days (in Poland we celebrate them January 21 and 22).
Or for a fellow book lover filled up with favorite book quotes.