The most interesting items we've seen here haven't been the traditional, bread-and-butter stuff you'd expect, like TVs, headphones, laptops and home entertainment systems.

Instead, we've been more fascinated by the left-field entries like brainwave-controlled toys, lightbulbs that communicate with your iPhone, $1000 tablets built for gaming, and laser-powered heads-up displays for your car.

Sure, there are plenty of cool TVs we want to take home (we've got one in this very round-up) but the real fun of CES is dipping into the non-stop stream of inventive, conceptual, crazy -- and crazy-expensive -- products on the showroom floor. Here's today's greatest hits.