Put This On Your Present List

The odds are that one day, probably while you are watching the Chase or Tipping Point, an alien will arrive unannounced in your living room and before you know it you will be face down on a table with a probe inserted somewhere that doesn't see too much sunshine and travelling at the speed of light towards Alpha Centuri.
Apart from missing the bit where Mark The Beast' Labbett catches the contestants with one second left on the clock, it can ruin a perfectly good evening but that's the way with aliens, they just turn up without warning...until now.
For just $49.28 (approx £30) you can buy a UFO-02 Detector, magnetometer interfaced with micro controller for detecting magnetic anomalies.
Who wouldn't want to find one of those in their stockings this Christmas!    
It works by monitoring its surrounding area for any magnetic and electromagnetic anomalies caused by aliens and warns you of an imminent probing by flashing 16 LED's simultaneously and beeping.
With this bit of kit you will never need to inflate another rubber ring to sit on ever again so add this to your cart and tell those pesky aliens where they can stick their probes.