Can't decide on the colour of your next car? Well, BMW has you covered with their all-electric iX Flow, which changes from black to white at the push of a button. The German automobile firm unveiled the chameleon-like sports activity vehicle today at the Consumer Electronics Show, which is being held in Las Vegas, Nevada. The colour changing ability uses the same'E ink' electrophoretic technology built into the screens of e-Book readers, except applied to a special car body wrap. Electrophoresis works by using an applied electric field to separate molecules -- in this case, black and white pigments -- based on their respective electric charges.

It wouldn't be CES season without at least a couple of offbeat robots showing up. Yukai Engineering, the maker of the Qoobo robotic cat tail pillow, has revealed a soft robot that nibbles on a user's fingertip. The company hopes the "somewhat pleasing sensation" will brighten up your day. Amagami Ham Ham has an algorithm called a "Hamgorithm" that selects one of two dozen nibbling patterns, so you'll never be sure exactly what you'll feel when you shove your digit into the robot's maw. Yukai designed the patterns -- which include Tasting Ham, Massaging Ham and Suction Ham -- to replicate the feeling of a baby or pet nibbling on one's finger.