In simpler times remote-controlled toys were just meant to have fun--like slot cars without tracks, in a reference for the geezers among us. Today, however, their uses are often more dubious: When they're not trying to cause a heart attack, they're used for spying or shocking and everything evil in between.
So we were relieved to find that there's at least one RC car with a purpose that's actually useful without being nefarious. The "Metal-Detect -Car" is true to its name, with built-in technology that can identify lost or hidden metallic objects while traversing "rough terrain," according to 7Gadgets. The car even has the approval of the London Science Museum, which would explain why its product description cites its off-road "tyres."