Barbie would never invite them to a pool party. They're categorical misfits in the realm of toys--Munny with hunched shoulders and a potbelly; Gloomy Bear, a pink cub with claws and a bloody muzzle. Unlike mass-produced, cuddly balls of fluff, these figures, once known as urban vinyl toys, have street smarts, loitering in the neighborhood of consumable Pop Art.
They aren't robots, but they are all products sold by a four-year-old company called Kidrobot. With an aesthetic that might be termed cute with attitude, Kidrobot's toys have built a following among kids and adult collectors, with sales last year of $6.2...