But the beam of light to gave me the idea to start this project was an article in MAKE magazine, Creepy doll robot. After reading that article, I stare at my Darth Tater, and every thing started to make sense.
I visited a hobby shop and get 3 futaba S3003 servos for 14€. And bought the PICAXE servo controller board AXE024 for £7.64. I widened the Mr.Potato's holes for the arms to be able to set the servo axis, and did the same with the Mr.Potato's feet. I used 4 screws for each servo to fix them to the Mr.Potato body. And that´s all.