The shaking, opening and (faintly) closing of a water bottle. The crystal-microphone is attached to the water bottle the whole time. At first to the side and then later to the top. Tascam.
Chernobyl nuclear power plant (npp). In front of the 4th reactor. Wind in plastic. Building site. Sound recoded in ms (not encoded). More info on www. Felixblume. Com.
This was a battery-powered train car running in circles on its plastic track. Is the sound pleasant? no. Did i hold my zoom h4n upside-down in the center of the circuit so the engine slowly pans from ear to ear? absolutely.
The sound of a upvc front door opening and closing. More of a slam as i let go of the door to shut it. No attribution needed at all, free to use on anything. Feel free to comment :).