Keeping cats interested in any one toy for any length of time can be difficult, at least in my experience. Plus, most of them require a lot of manual input on the owner’s part. The Egg is a Kickstarter project that aims to keep things interesting for the cat, and save energy for the owner, with a smart toy that moves on its own and can be programmed via a laptop. The Egg looks like its namesake, but contained within its plastic enclosure, it holds an offset weight and gearmotor, along with a printed circuit board. The Egg can detect floor type and even obstacles, like a cat’s paw or person’s foot, and rotate its weight using the gearmotor to change direction. The result is a ball that can continuously roll and keep a cat’s interest without any human intervention. Or, with limited human intervention, I should say.