Should Servo be made from spare parts rather than bought?
There's definitely some irony, there!
But with my pathetic skills, I doubt whatever I attempted could have been mistaken for Tom. At best I might have concocted a "Toby Torque-shaft" or a "Sammy Solinoid".
Though I have envisioned a MSTie inspired Kinoshita design, a "costume/prop" built from assorted parts paying tribute to Robby the Robot and B9 of Lost in Space. Wouldn't be able to get a guy like that into a theater seat, though!