Rhythm machine single drum hits, crushed and distorted. Ideal for layering your drums. You can use adsr to lower the length of the sounds, since they all have a noise tail. Check out the other sounds from this pack too.
Hitting radiator with fingers and scrapping over with a metallic object (car-key). When amplify the quiet content, some interesting sound can be worked out. Recorded with a ultra cheap microphone unit of my mp3 player. Reduced noise.