"Tux has gone open source in a different way. The Free Penguin Project provides free GPL sewing patterns and advice so that anyone who meets the hardware requirements can create a fluffy stuffed penguin of their own; specifically, would-be Tux tailors need access to a sewing machine and fabric.
"Joerg Feuerhake, the head of the project, calls the patterns 'free executables.' Late in 2000, while Feuerhake was working on a degree in economics, he and his colleagues wondered why patterns for Linux's mascot were not freely available..."