These days it seems that Big Brother is everywhere, watching you. In places like the UK there are public surveillance cameras all over the place. Aside from covering your head completely, there is little one can do to stay “off the radar” in these areas. That, or with a little bit of effort and know-how you can assemble a small device that will prevent your face from being seen on any video cameras.
Essentially what you have here is a small device that you wear on your head that contains a group of infrared lights. When a video camera tries to record your face, all it will see is a white light. I can’t really think of many uses for this that wouldn’t make you seem suspicious. If anyone asks, just tell them that you’re “sticking it to the man.”
I tried to find the actual instructions for how to make this, but was unsuccessful. It seems simple enough. You’ll just need to wire up some infrared lights to something you can wear on your head, connect it to a power source and you’re good to go. I’m sure it’s a bit more complicated than that though.