My first attempt at inventing, designing and making my own automata, after making four from "Paper Automata", a book by Robert Ives.
Here's a very short video clip of it working: https://youtu.be/SN6yBusoH6U
I might develop this further by having 6 pipes in a row and swapping out the lever arm for a crankshaft, to make it more like an engine.
I used piano wire for the arms. In future developments I'll use thinner wire so the hands wave about frantically.