HOW TO – Make A Robot Car – Part I
Make pal jason Striegel writes “I wish I could say I had a half-million dollar budget to put towards a Stanford style Grand Challenge vehicle, but I’m afraid I’ve already earmarked that money for thermoptic camouflage and bionic calf implants. Still, it seems like you just can’t be a self respecting hacker these days unless you have an autonomous Humvee or two. So, I decided it would be a worthwhile project to create a smaller scale robotic car. After a quick treasure-hunt under the sofa cusions and a trip to Radio Shack, I had everything I needed.” Link.
Here’s another laptop to picture frame project – this one uses an iBook. The iBook screen was flipped around, a new color added and the whole thing uses a hockey puck to stand on its own. The power button was moved to a more accessible spot too. 
By using an old laptop, a home made chat-cord and some parts from an old telephone you can build a telephone tapping device. Add Atropos to the mix and you have yourself an telephone call archiving system that will save all incoming and outgoing calls. Maybe not that legal if you actually use it, as it’s illegal to tap phones in most contries. It’ss probably even illegal to tap you own phone but a fun project non the less. Step by step instructions and and even a sample of an incoming phone call. 
Peter writes “It’s toasters as musical instruments: people are stuffing guitar amps and effects and synths into vintage toasters, with tricked-out options like chrome paint, rubber tires, and flame throwers. And yes, they still make toast.” 
Seems to me this would could be used with a GPS and 
Here’s a pretty good overview and how to on setting up Linux on a Mac or PC. I usually carry a few Ubuntu “live CDs” when I travel – these CDs allow you to boot in to Linux, but it won’t mess up anything on the hard drive. More often than not, the folks I show it to start using Ubuntu, it’s a pretty nice system and this how to is really handy to get it up and running on that old computer gathering dust you might have. 