examples of natural sound displays

[Milena Droumeva <mvdroume@xxxxxx>]

Hi group(s),

I am part of a team working on a sustainable solar house project, and we 
might be looking at using some natural sound-making materials as 
"auditory displays". I was wondering if anyone can forward examples and 
ideas as to what those could be, what has been done and how could it be 
designed. One of the idea I am thinking is these "displays" being driven 
by the elements - such as water, wind, etc.

Thanks so much!

Milena Droumeva
Simon Fraser University
Canada