Here are the Blender source files for the example I showed in class:

• Box Man built out of 6 separate boxes using CSG operations, aka. Boolean modifiers, in Blender-speak (still editable if you want to fiddle with it) boxman-build
• Box Man with the boxes merged into a single mesh (starting point for lecture demo) boxman-mesh
• The rigged and posed character (ending point for lecture) boxman-rigged