It depends on the cat, they can be conditioned to accept things like collars and even leashes if you start early enough. A friend once attached a servo to the

It depends on the cat, they can be conditioned to accept things like collars and even leashes if you start early enough. A friend once attached a servo to the collar of his appendage-friendly cat with a long carbon rod protruding in front of his cat's head carrying a small cat toy on the end. The receiver and small battery pack hung from the collar bottom to keep things oriented. It only lasted for brief periods of amusement before the rig would get destroyed in the chaos, but in those short functional windows he could influence his cat's steering by radio control. I don't think he ever figured out how to add a throttle control.