Rawr! Instructables user poyecto_gir writes:

I will teach you how to make props of a mechanical arm (the clamp can be activated by spring action or motorized action, I will show both possibilities), a face plate (the eye lights) and the battle vest (the chest plate lights too).

And the best part? The props are made 90% of dead computers pieces. You will find here plastic cases of almost any kind of computer parts or accessories related with computers, PC and MAC. (Curiously, the only thing you will not find here is a mouse).