Potter My partner got me one of these things from the link below, it is INCREDIBLE! These things are incredibly loud and at lower volumes make great wind noises. He also makes really fabulous clay whistles and flutes.
I really can't recommend one of these enough.
Bort Oh yeah, all those Aztecs riding around on horses. Accompanied by the legendary Aztec unicycle warriors I would imagine.
Killer Joe I admit, if I was a bronze (stone?) age jungle guy, and a hundred dudes charging my dirt farm were making this noise, I'd probably peace out.