Step-by-step instructions for high-flying aerodynamic designs like the Boomerang Jet which always comes back. All the designs create planes, without needing glue or scissors, that perform fantastic stunts.
There were several designs that didn't look remotely like airplanes. We tried to make 4 of the 13 different designs, and only 1 was a decent flier. We may have made the others incorrectly though because the illustrations seemed to be missing steps. There are better instructions for making a variety of REALLY good airplanes on the internet.