[antipotoad]

The yaybahar. It really sounds like there are electronics involved, but no:

> Yaybahar is an electric-free, totally acoustic instrument designed by Gorkem Sen. The vibrations from the strings are transmitted via the coiled springs to the frame drums. These vibrations are turned into sound by the membranes which echo back and forth on the coiled springs. This results in an unique listening experience with an hypnotic surround sound.

https://www.youtube.com/watch?v=_aY6TxC1ojA

[O__________O]

Appears to be a variant of a spring drum:

https://m.youtube.com/results?search_query=Spring+drum

Enable to find an example, but seen another variant where the spring is suspended in the center of a hollow tube with caps on the ends and hole on the side for sound to escape.

[unsupp0rted]

This would be ideal for the next Dune film(s)