DS10 has been accumulating various "junk" objects for quite some time now. He would like to use these items to build a robot. He has all kinds of things...circuits, gears, etc.
He also has the complete set of Snap Circuits.
Can anybody suggest a book or a resource that might be useful in helping him combine his trinkets into an actual working robot? I would like him to work on this with his Dad, as a bit of a bonding project.