This is one I've been wanting to do for ages since I started making masks in this "plain" (well, unpainted) style. A Minotaur/gas mask hybrid. While it's not quite what I had in mind (look, you can't make leather support brass horns that size. At least, not easily.) I'm still very much pleased with the result.
Media: Leather, with brass riveting and brass mesh screens in the nostrils.
This piece has been sold. If you're interested in commissioning something similar, just let me know.
this is quite interesting, in regards to supporting brass horns you could add a strap over the head horn to horn...maybe wont support when its sitting freely like the picture, but should when on a person or mannequin head..looks awesome tho!