Cats may be really funny at times, but when all you want to do is get a good night's rest, some stray specimens can be downright annoying with all the noise they make. In such situations, the Mega-Sonic ScatterCat Pest Repeller could be your solution.
This battery-operated "gun" actually fires an invisible high-frequency sound that's inaudible to humans but scares the felines--and other creatures--away. It even has a laser sight so you know you've pointed it at the right target. It can target animals more than 65 feet away.
Such products aren't new, but this one hits the spot by looking like a cheap prop from a tacky science fiction TV show, which makes it perfect for homeowners who love the occasional geek motif in their home decor. It's available from online store Maplin for 10 pounds (about $15).