Tecti Kinetic Building System ($34), HyperTiles ($27), Robots, Gadgets, and Artificial Intelligence and How They Transform our World by Tom Jackson ($6), Quantum Sneakers and Other Intergalactic Surprises: Twelve Sci-Fi Adventures… by Eileen Christy ($10), Technology, Gadgets, and Inventions That You Can Make ($12), plastic container with lid ($6).
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