DIY Laptop Etch-A-Sketch is Almost Worth Destroying a Hard Drive

I think my hard drive flinched in fear when I pulled up these instructions for turning a laptop into an Etch-A-Sketch. How could it not when the project is a freakin' awesome Arduino-powered Hack-A-Sketch that you actually shake to erase.

The shake-to-erase action works because of a hidden mercury switch which detects movement and you don't really need to worry about the hard drive since this project kinda destroys your screen. [Project Lab via Make]