The Paraniod Pen
There are some people in this world that are paranoid for no apparent reason. I'm sure you know at least one. You know the type, they're convinced that someone's always watching them and their calls are being tapped. Here's something that you can get them to help with the former.
The iTeki Hidden Camera Detector Pen is a mouthful, but it does just what the name says. It scans the area for wireless signals. This is good because most hidden cameras you're going to find these days will likely be wireless units. The pen also has a built-in UV light that you can use to check for counterfeit bills.
The great thing is that in my house, I can pick up at least 3 wireless signals from my neighbors'. So now you've given your paranoid friend something that is going to detect these signals, and they're going to think that they have hidden cameras in their house. Remember, just because you're paranoid, doesn't mean they're not after you.
iTeki Hidden Camera Detector Pen – for thy enemies are legion [via redferret]