Door handle in my kitchen looped four times. Recorded with a tascam dr-05x. Noise reduction applied with a dose of vintage warmer. Is it warmer? i don't know.
Created a loop in audacity by hitting an old coca cola collectors glass with a spoon in several locations, altering the pitch of these sounds, and applying them in a rhythmic fashion. Ended up with a kinda creepy march-like sound.
A short layer of rhythmic clanging created as a scary atmosphere in a chase scene. Used a roland groovebox with the self-sampling utility directly to wav. I've found this method results in good sounding recordings, but reduced high frequencies. Sorry, don't know the bpm.