About this 3D model

This image of various sized whistles: http://www.thingiverse.com/derivative:680 got me thinking. Scaling is RIDICULOUSLY easy with Blender -- and then printing out the new part is just as easy as the previously sized part. So why not make a part that benefited from this scalability? So, I was thinking, there are all kinds of bottles out there. And adding a whistle to the top will basically form a resonance chamber of that bottle\'s note. Can anybody say Jug Band?