I don't think I would engrave it on the pistol,,,
But I could easily see it carved and dyed on a custom holster.
My Sci-Fi geekiness is showing.
One of the characters in the Sci Fi Japanese Anime' series "the Ghost in the Shell" carries the Mateba, which the Rhino was apparently developed from.
(okay so I watch anime' that features hot female androids, so what)