I don't know if there's existing version so I wonder if I could design one but I have no experience on such thing. Anyone can share your experience about the horn part? A precise sketch would be very nice, also the stand if you have any idea. I'll upload the 3D model somewhere so you can order the print anywhere eg. Shapeways. May be I can make 2-3 designs that suite your best preferences.

I attached a basic design image to describe the idea.

Edit: I am currently extremely busy right now will get back to this ASAP hopefully by next week.