The logic is simple. Dogs love playing catch. Put a tennis ball on a camera and the draw is magnetic. They’ll follow that camera as if their lives depended on it.

Maker Jason Hernandez wanted the perfect pooch picture. By mounting a squeaky dog ball to his phone, he captured his dog’s attention and got him to stay put.

Now you’ll have a generous collection of ‘grammable, Facebook-caliber, runway-worthy shots of your pup.