It took some searching, but I found this horn, which I think would be perfect for the VX:

http://www.fiammamerica.com/Product.asp?ProductID=150

Here's the sound clip:

http://www.fiammamerica.com/media/pr...5032166030.wav

What do you guys think?

I found it for sale here:

http://home.flash.net/~duetto/horns.htm