Thanks to a one-day April 1 sale, Petco is selling pet selfie sticks [1]. For the low-low price of $49 you get a "dog on a stick" contraption that includes a stick for your smart phone and a harness. The camera is activated with a bark or a meow. If you haven't put it together yet, yes: this is an April Fools' joke. A pretty good one, we'd say! If you do fall for it, they will give you 20 percent off actual products.