If you start wasting somebody's time at NASA, this is how they're going to get you out of their office. Or, it's how JPL engineer Mark Rober will, anyway. This hacked Nintendo console will definitely put you on notice.

What brand of AA battery gives you the most power for your dollar?

Forget you Maglite, your glowstick, and definitely your cellphone, there's a new, cooler brush for painting with light. It's called the LightScythe. It's a long wand of computer controlled LED lights, and with it you can create some amazing images.

The problem with most security cameras is that they're fixed—you've got to install multiple units around your house if you want to cover every room. Instead, the Oculus Telepresence system simply mobilizes your webcam-equipped netbook for sentry duty.

The Graffiti Research Lab is back again with another open source project that lets untalented wannabe Banksys easily tag an entire wall with a customized dot matrix message. But we highly doubt they'll be laying down the works of Shakespeare.

Disney's Haunted Mansion is one of those corny staples you just have to hit when you visit the Magic Kingdom. But Disney World is far for some. Why not bring parts of the experience home for Halloween?

The Kenbak-1 is 40 years old, runs at 1 MHz, and can't do very much besides blink. But computers had a humble start in this little guy, and modder Mark Wilson replicated the antique with 21st century parts.

Poor, fledgling Nintendo. When tinkerers are creating better gaming experiences than you are using nothing but a shoebox, paper cut-outs, some magnets and an Arduino, you know things aren't going well.

Arduino, the tinkerer's delight that powers everything from embeddable clothing at the MIT Media Lab to DIY robots, requires some basic instruction in order to be used properly. What better way than a comic? Jody Culkin has done just that.

Imagine waking up with a bomb beside your bed. You have 10-seconds to cut one of four wires if you want to stop the countdown timer. This sounds like a nightmare, but it's not. It's just the defusable clock.