Infrared photography can create impressive effects, but it usually requires an expensive filter. If you don't want to buy one, you can take apart an old camera and give it infrared powers yourself.
Photo by Daniel Schwen.
This hack will permanently modify your camera and void your warranty, and you probably won't be able to take normal pictures with it when you're done. It's a perfect project for an old, unused camera you still have lying around.
All you need to do is open it up and remove the IR filter. It's buried pretty deep, but all the project requires is undoing a lot of screws. When you're done, you'll be able to create awesome infrared shots like the one shown above. Hit the link below for the step-by-step instructions.