Microphone holder for table thickness of 34 cm. All you need is an M5 screw and an M5 wing nut.
I used this address to remix the screw part;
https://www.thingiverse.com/thing:3581889
You can download the fixing nut from this address;
https://www.thingiverse.com/thing:1956880
The author hasn't provided the model origin yet.