No, never thought about it.Do you have any idea what a 3D metal printer costs? Not economically feasible. I'd imagine that even to lease one would make the cost very prohibitive as well.
I had shapeways print me a whole TNNSER in metal.
Cost around 150€. The head made about 1/3 of this sum. I have seen a lot more expensive razors show up in the last years.
riverrun contracted someone to print the other TNNSER that were spread throughout the world. I see no reason not to think about printing the combs in metal and the body in metal or plastic.
But I'll probably buy a milled bunny if it becomes available as well.