Promoting free-range imagination, hands-on ingenuity, and independent play, Robert Smith's timeless activity guide reminds parents and children alike that making one's own fun is the best way to avoid boredom. With easy-to-follow, illustrated directions to hacking household objects into toys and using nature to invent mischievous contraptions, this is a handbook that inspires creative play. From indoor boomerangs, pin pianos, umbrella bow and arrows,...