Instructables member Mike Warren has completely changed the dog walking experience with his modified Xbox controller:
Move up, down, left, and right with the joysticks. Fire missiles and magical spells with your triggers, access the dogwalking menu by hitting select, or hold down the Xbox button to reset or turn off your dog.
To accomplish all of this, Mike had to remove the rumble motor. But that's okay. Now it's a repository for poop bags. He tells us that the Konami code is enabled, which is handy. And if you need a break, just tap on the paws button.