Build: Robo-Dusty

This is my idea for the sixth Robot. I have two cats and when they play or fight together, they leave on the floor some tufts of their fur. instead of using a broom to pick them up, I think that this Robo-Dusty can help me. I haven't got a real Mindstorm (I used Lego Digital Designer) so I tried to image how it can works. Two motors connect the body to the wheels. A little motor is connected to the front of the body and to a board thant hangs up 3 propellers. The central one turns around and at the same time it turns around the entire board with the other 2 propellers and pick up the fur. I can steer the robot with the IR beacon. I also think that my cats are attracted by Robo-Dusty. If I win, I'll test if my Robo-Dusty  really does  what I imaged. If it becomes the Sixth robot, it will be useful and delightful at the same time.