Amazon.com description: Product Description: Fire up your soldering iron, charge up that drill, and get ready to hack! From a tiny theremin to a watermelon keg, from an automatic cat feeder to a glowing mousepad, the ingenious and hilarious projects in The Big Book of Hacks are perfect for aspiring makers. And it's all brought to you by the DIY masters at Popular Science magazine.

Four comprehensive chapters help you create megafun games and toys for the amusement of all:

GEEK TOYS Be the life of any party with rad gaming hacks, amazing pyrotechnics, quirky DIY robots, "wow"-inducing projectiles, and lots of ways to make beer even better.

HOME IMPROVEMENTS Pimp out your pad with a laser-security system, an improvised sous-vide cooker, and a life-size cardboard display of anyone you want.

GADGET UPGRADES Want to stash a flash drive in an old cassette? Use a DIY stylus on a touchscreen? Improvise a fisheye lens for your camera? With this book, you can.

THINGS THAT GO Give your motorbike a Tron vibe, deck out your car with an action-figure hood ornament, and keep gadgets charged on the go with a solar-powered backpack.