The most uniqe door-bell i ever found. Made of 3 differet bells. The sound captures opening and closing the gate door which triggers 3 different bells. Probably it won't fit for your purpose but if so let me know in comment section:).
I needed a sound for an opening door and i didn't find anything so i made one with my h4n and a ntg1 microphone. I used two doors and different ways of opening the doors.
Paisaje sonoro del campus de la universidad europea de madrid. European university of madrid campus soundscape. Sonido de puerta automática. Automatic door sound.
Assembled in reason 12. 44hz 16bit 120bpm. This pattern is made to be sliced up. I tried to stay away from eqing the sound so there would be flexibility with post processing.