When we were kids, the only toy we had was a cardboard box. Walked uphill to and from school, too-both ways. And in the rain. Imagine what we could have done if we’d have had Cardboard Box Engineering, the (175)-page book full of photos, illustrations, educational facts and instructions on how to turn household items into games, airplanes, robots, gears, solar cookers and more. Kids can design, tinker and build their own outside-the-box creations, Get it? Outside the box? From best-selling author Jonathan Adolph. Made in USA.