Rubber Band Powered Flying Machines Book and Kit. Build three rubber band powered flying machines and watch them soar again and again! These flying machines will fly indoors and outdoors and are tough enough to withstand numerous crashes and they're easy to make! The book gives step-by-step instructions with color photos and pictures so following along is no problem. This kit contains one 48 page instruction book: and all the materials to make three rubber band flying machines: (punch-out foam; propellers; rubber bands; adhes ives and more!) Author: Pat Murphy. Caution: Kit contains natural rubber latex which may cause allergic reactions. Tape conforms to ASTM D4236.Recommended for ages 8 and up. WARNING:CHOKING HAZARD-Small Parts. Not for children under 3 years.