http://science.nasa.gov/headlines/y2008/21apr_ducttape.htm?list39638

Amazing! MacGyver would be so proud. Seems Apollo 17 astronauts used duct tape to re-attach initial fender when it was damaged, and then again to create a new fender from laminated maps and duct tape per procedures from NASA. This modified version lasted the rest of the mission. Now there’s a great ad campaign for some duct tape company needing an idea.