Manda (a.k.a. "Talzhemir") designed "The Eagle" in 2007, based on the delightful CooKit. It is slightly smaller than a CooKit. Like a CooKit, it is collapsible and easily stored flat. It gets its name from the vaguely Thunderbird shape when unfolded. An optional piece, shaped like an eagle's head, may be added at the top.
"The Eagle" was created specifically with Americans in mind. Its initial pattern is made out of U.S. standard 8 1/2" X 11" pieces of paper. This method lends versatility: the Eagle can easily be pieced together out of the smaller sections, or, it can be cut from a single piece of cardboard.
It is entirely made by measuring distances with a ruler (the measurements are English, i.e., in inches), and connecting points. There are no angle measurements so no compass or protractor is used.
Besides a whole rectangular piece of paper, there are only four other shapes used. The Eagle is composed of eleven pieces in all.
17 page .PDF document
Written in 2010, the following includes full-size pages for use as a pattern. http://tinyurl.com/eaglesolarcooker
The original one-page handout introducing the Eagle is available here: http://www.thegenieslamp.com/solarcooking/talzclam1.pdf
A non-functional scale model of the Eagle is available here, as a one-page .PDF printout. http://www.thegenieslamp.com/solarcooking/talzclam1_model.pdf
A slightly more economical method than to cut up printed pages is to follow the diagram using ruler and pencil. http://www.thegenieslamp.com/solarcooking/eagle.bmp