A video going over some of the basic preprocess work when building animatronics.
Animatronic Character Basics – Preview with Richard Landon
Obviously the sort of mechanics they rely on is a bit different from what you guys are doing. However, their’s are often powered by small motors too, so there may be some parallels that could be done with the legos. Also, as you’re starting to watch some of these videos created by people in the profession, start thinking about how you are going to create the skin for your critters. Keep in mind, nothing may damage nor permanently alter or mark the robots or their pieces.
I know this is limiting, but thats how it is with education funding the way it is.