"The only function of the Suspicious Looking device is to appear as suspicious as possible, whether carried in hand or placed indiscrimately in public places." - Junkfunnel Product Page
Using a combination of LEDs, an optical distance sensor, touch sensor, buzzer and motors, the Suspicious Looking Device will manage to freak out even the most veteran of TSA agents. Imagine the fun for the whole family as you miss your flight to participate in a friendly afternoon of cavity searches and hot-lamp interrogations. And if the device weren't cool enough on its own accord, the design is reminiscent of the Ghostbusters trap - though that was a more comforting technology, I guess.