Compared to electric gadgetry, something like a trumpet is a pretty simple contraption, but the way it actually works is super clever when you see it in action. The principle is very straightforward, but the construction of the actual pieces that re-route your hot air are damn cool to see at work.
Click on the image if you don’t see the animation.
Now does anyone have a cross-sectional GIF of how an embouchure works, because I still can’t figure that one out.