. . . but a smaller, safer model. He would like to dangle yarn from it with a little paper ball on the end and fly it about the head and shoulders of his pint-sized cat — a joyful remedy for those times when fits of excess energy send her racing from room to room while Guy is trying to get his work done. Below is a video of the prototype in action (of the robot, not the cat):
The story of its design and creation can be found here.
And here is Batkitty, as depicted on her drivers’ license: