A larger version of a parabolic mic, much improved acoustics vs. my prior model. Prints well on a 200x200mm bed. Print it relatively solid, since sound reflects better off hard surfaces.
You will need several M3 5mm screws, four M3 20mm screws, locking M3 nuts, and a lapel microphone.
As a test, I created my own nature video. Witness the disgusting self-hygiene sounds of the pug. The first 10 seconds were recorded through the parabolic mic, and the last 8 seconds with just the lapel mic: https://www.youtube.com/watch?v=2isji7mE3Ik
I'll add more real-world examples when the rain stops.