The son of my grandfather's brother, (great uncle of mine, or what do you call that relation), is a technical high school teacher..And a WW1 historic buff.
They were in posession of an original Rhone 9c Rotation engine..
So he and his pupils made up a 1:1 replica of the plane the engine came out of, a
Morane Saulnier Parasol Type L, the plane used by Guynemer to score his first victory, the first of many. And they got the engine running again..
http://users.telenet.be/geert.woussen/morane%20saulnier/Morane%20Saulnier%20Parasol%20L.html