take apart a hard drive, and superglue a needle at an angle, making contact with the hard drive at an angle, and just barely touching, also make sure the angle is such that the needle is pointing the direction of rotation.
this makes for a wonderful SCREEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEECH