Do you have a bunch of people sneaking around that you want to not only catch, but expose to the world? If so, then this laser tripwire project is worth a try. You have to hook up a laser pointer, a photoresistor, and a webcam all together, and voila, you have a laser tripwire that will capture a photo of the intruder and upload a link to the photo on Twitter.

Think of it as a basic home security system. In fact it would be great if more security systems used this while the home-owner is away. The cops and Twitter would have a picture of any perks who break in.

Not so long ago one of the chain restaurants had these kids meals that came with paper cars that you have to punch out and fold to build. The things weren’t that easy to put together so I can only imagine how hard building this 1:1 full-size replica of a race car was for the geeks at Epson.

The car is a replica of the Acura/Honda NSX Super GT race car and is built from cardboard and paper. There isn’t a piece of metal in the entire papercraft sculpture, even the frame is cardboard.

I don’t think we’ve ever seen an actual set of Lego headphones before. This Instructables DIYer didn’t just glue a few Lego bricks onto an old pair of headphones either. If you look at the detail, this guy has some awesome skills.

The whole project took about a month and a half to complete. The creator claims that they are sturdy enough to be “tossed around in a bag”. And he can take it apart any time he wants to make repairs that may be needed on the go.

We’ve seen some sweet ass guitars round these parts, but nothing compares to this Millenium Falcon guitar. It was created by one Travis S, who knows how to meld guitar with ship like a true master.

This thing may not look like much, but she’s got it where it counts. It even lights up just like the real Falcon. Now all he needs is some alien friends with saxophones and he can rock the Cantina with this thing. It is fully functional.

I know that my wife would never let a coffee table as geeky as the one this DIY guy created from old computer parts into our house. This thing would look really good in my office though. The builder took old mainboards and other computer parts and built one of the coolest tables I have seen.

The table is actually made from two tables with a smaller table that the mainboards and components are attached to inside the larger table. The larger table is made from wood and glass with LED lights to let you see all the geekery inside the glass table.

So you really like the style and picture quality of one of those Leica cameras, but you don’t want to spend $7000? For a tiny fraction of that cost, you can at least have Lecia style, albeit in cardboard DIY fashion.

The Likea MPH is a camera that you have to put together with tape and glue. It uses real film to shoot photos that you can actually have developed. The maker says you can reuse the camera if you are careful with your tape and glue.

Sometime I run across stuff that is so great it’s just amazing. Today is such a day. A guy named Dave has created the coolest go-cart ever. It’s perfect for cruising at the racetrack and would make the perfect golf cart for drunkards.

The cart is made out of what appears to be a normal enough go cart frame and motor. Rather than seats, the thing has a pair of toilets on it. The tanks for the toilets are replaced with red coolers.

It’s hot here in the Northeast. Very hot! If your air conditioning fails or you simply don’t have air conditioning, here’s a DIY solution. You wont have real AC cooling power, but it beats having nothing.

You just need a cooler, a fan, some tubes and a water pump. Then you just need to run cool water in front of the fan for it to cool off the air that blows out, making it only slightly more effective than a regular fan.

Lots of netbook users take their devices with them wherever they go. The small and portable stature of the netbooks makes them idea for travel. If you use your in the sun a lot and want a more readable screen or have broken your screen, Pixel Qi has a DIY repair for you.

The Pixel Qi screen famous for its sunlight readability is now available for DIY repairs for $275. The screen is 10.1-inches and will fit most netbooks with screens that size.

It sucks laying out more money for iPhone accessories. When is enough enough? All of that money adds up. So how do you make a super cheap case and save some dough? Well, Oliver Nelson has used a rubber wristband to act as a bumper on his phone.

They are apparently an almost perfect fit when stretched around the 4′s antennae. A 1.125-inch long by 0.125-inch wide incision (into the unstretched band) is necessary to keep the 30-pin port and speakers open, but otherwise it’s pretty easy and dirt cheap too.

We love us some good old fashioned Atari mods around here and this is maybe the neatest we’ve seen in some time. This portable Atari is small enough to pass itself off as a Gameboy.

The core system is an Atari Flashback 2, an embedded system with a few built-in games. But without the cartridge slot it wouldn’t be the mod it is, allowing the owner to play any game he wants. Not sure about the color though. An Atari mod should be wood grain.

If you were stoked about getting yourself a white iPhone 4, but don’t want to wait until late July, you can always opt to build your own.

Engadget has done just that. They have assembled a white iPhone 4 with third-party parts and it looks just awesome. Sure, it’s missing an earpiece grill, lens cover, LED diffusor, and a white Home button, but it’s pretty cool.

Don’t see any tablets on the market that you like? Liquidware has created a DIY tablet kit for just under $400 that gives you everything you need to create your own 4.3 inch touch screen tablet device. The Beagle Tablet kit from Liquidware is a portable modular open source handheld computer and is completely modular.

Everything snaps on or is mounted directly to the BeagleBoard C4. The end result is a compact handheld tablet computer. The kit contains a 4.3-inch OLED touchscreen, a single board computer from Texas Instruments that comes with a 1 GHz processor. There’s also a battery module and a 4 GB pre-formatted SD card that either Android OS or Linuxcan be installed on.

Heineken is known for its beer and the iconic green bottles the beer come sin. If you are tired of that green bottle and want something, a little more personalized the beer company is now offering customized bottles.

You can go the Heineken website and for about $38, you can order your own custom six-pack of beer. That’s expensive, but it would be a great gift for the beer lover you know.

Another day, another Arduino-based gadget. But this one is actually something you will want to wear. The Arduino Watch: Steampunk Edition has temperature, range finding, and trackball input while displaying time, games, and more with its 128 by 128 pixel OLED 16 bit display.

It plays Breakout and has the ability to display time in digital, analog or binary. Other sensors and programs can be added if you like. It can be made for around $250.