We've seen pocket-sized Raspberry Pi computers before, but they usually require a 3D-printed case. DIY enthusiast Chris Robinson shows you how to build one with off-the-shelf parts.
Robinson's build uses a Raspberry Pi A+, a USB hub, battery, touchscreen, charger, backlit keyboard and a few other random parts. The whole thing is housed inside of two plastic hard drive enclosures that are connected with a piano hinge. You'll need some extra tools, including a drill, a soldering iron and some wire cutters, but Robinson's guide is otherwise pretty straightforward.