I am a big fan of Metal Gear Solid , and ever since I played this game I wanted to make D-Walker . So I began doing this using nothing but as usual recycle materials. This has complete articulation I have used many materials to make this such as styrofoam , cardboard , empty pens and square electrical tube. The machine gun was made from paper and toothpick . The hands were made from pen cartridges , sticks and pop sickle stick. Thank you .