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Tetrapix Tetrahedron Puzzles are really cool. They make six different themed puzzles and each puzzle makes four different images in the theme you pick. I love the Four Seasons theme! It’s been fun, advancing my puzzle like a seasonal clock. It’s become a nice little ritual that keeps my bookshelf up-to-date. And the pictures are a nice reminder to celebrate the specialness of each season. Would make a great gift, too. https://www.tetrapix.com