Just saw this in my [URL="http://www.museumreplicas.com/p-1718-airship-pirate-cutlass-latex.aspx"]Museum Replicas[/URL] catalog. Its supposed to be for steam punk and listed as a "Airship Pirate Cutlass". Me thinks it resembles something else.
It measures 35" with a blade of 25" and runs for $75. Made out of high quality latex.