This is a little robot guy that I made tonight in my spare time between two sessions of studying as a little animation project with my son (he is seven and would love to know something about 3D animation). I love the simplicity of the character. It was rigged with 'rigify' addon for Blender in about 10 minutes (together with inserting correction bones to keep his belly rigid - he is a robot after all)

Many thanks to Nathan Weigdahl that develops 'rigify'