Those looking to raise a little high-tech ruckus at the shopping mall may want to head over to Instructables, which now has step-by-step instructions for remotely manipulating the locking mechanism increasingly being used on shopping carts. Dubbed the EMP shopping cart locker, the elaborate device is unsurprisingly no easy feat, requiring some fairly elite DIY skills and a good chunk of cash (upwards of $150). Of course, there's also the small matter of the rather suspicious-looking nature of the device, which consists copious amounts of wire with a trigger on the end. Needless to say, the mall security guards likely be even less amused than the shoppers that suddenly find themselves stopped in their tracks, so proceed at your own risk.
[Via Gadget Lab