Metal Flash?

[Gregory L. Hansen]

I was just wondering... people love a  sturdy, metal camera.  Some
people even pay a lot of money for the Leica experience.  But is there
such a thing as a sturdy, metal flash unit?  Somehow it seems a little
wrong, especially for the Leica, if you can only put an aerodynamic
plastic flash unit on top of your sturdy metal camera.