I was discussing this with another tech teacher over coffee. In our lab we used to challenge kids to create an articulated head that was run with pneumatics. They were doing this pretty much from scratch or building off of what other students had figured out. If the kids had been able to access videos like this one, the quality of their work would have increased immensely.
I wonder how many of us are taking advantage of what the web has to offer? How many of us are still running our classrooms like the web doesn't exist? These kids are going out into a world where the web is going to be a part of their professions.
Anyway, take a look at this mask and the plans are at this site.
[Image: "Make an articulated Werewolf Mask." gryphern home page (on YouTube). YouTube. 15 Oct 2007