Here´s a step-by-step guide to folding 10 different paper airplanes. This big (10" x 12") book comes complete with 40 sheets of flight-tested, ready-to-fold paper, printed on both sides in a variety of 20 colorful patterns, including leopard print, wood grain, hot rod flames and lose-it-on-the-lawn grass.
— Boys love, “Klutz paper airplanes and things that they can do,” reported Kim Walter, manager of 6.5-year-old Giggles in Stoughton, Wis.
— Klutz kits are among kids favorite items, indoors and out, all year round, according to retailers nationwide.
“The Klutz Book of Paper  Airplanes helps kids make more than just paper toys. It teaches them to  create high performance flying paper machines,” Melissa Bloomfield, publicist for Klutz, told TDmonthly in 2006.