CES 2014: The coolest (and silliest) gadgets from day four of the Consumer Electronics Show

The Consumer Electronics Show is now well into its second-last day of exhibits, and has churned up yet another host of odd and awe-inspiring gadgets and devices. Most of the items in today's round-up from CES actually have a good degree of utility, with the potential for mass consumer adoption. There's a couple of inventions, however, that I really hope not to see reaching a wide audience in the future.