The Top 5 High End SmartWatches Compared Puzzle Book With Pages That Must Be Solved to Unlock the Next. Only The Smart Ones Can Read It - smart watches -
Chomp puzzle books are designed to teach kids about basic food chains. Each puzzle introduces a different level of a food chain inits environment; Forest, Ocean, Arctic, Jungle, and Desert.
Diamond Locking wooden book [Need to see if I can duplicate this trick; there's a box out there somewhere and the center square changes color when unlocked]
heart puzzles creative wedding guest book *some really creative ideas!
Learn how to create and publish puzzle books
Gift your favorite brainiac this custom book, filled with 50 pages of puzzles, word searches, and crosswords.