A totally pointless gadget, but hey, pet owners are usually suckers for anything that's labeled "gear for your pet." I should know, having been one. First off, most pet owners would already know how old their pooch or kitty cat is. And yes, that's in both human and animal years.
But back to that bit about suckers, this Sega Toys Pet Care Clock ($40) is designed to track time as experienced by our pets (and not much else). All that's needed is to input your sweetie's size and age, and voila. Now here comes the irresistible deal breaker: It'll sing happy birthday every year right on your pet's human age birthday. Awww.