Vaucanson's Defecating Duck Automaton
Here is a link to a video featuring a reproduction of Vaucanson's duck automaton on YouTube. If I am not mistaken, this reproduction was made by Frédéric Vidoni for the Museum of the Automata in Grenoble, in order to pay tribute to Vaucanson.
Here is a link to an earlier post with a photo of Vaucanson's duck, showing some of the workings of the original mechanism.
More on Vaucanson and his creations can be found in these books:
* Edison's Eve: A Magical History of the Quest for Mechanical Life
* Crescendo of the Virtuoso: Spectacle, Skill, and Self-Promotion in Paris during the Age of Revolution