Abstract: A musical drawing assembly having a drawing board on which a person can draw. A sensor is adapted to sense drawing movement on the drawing board. A storage device stores accompaniment melodies each having a different succession of musical tones. The storage device stores instrumental melodies corresponding to different musical instruments and each having a different succession of musical tones. The musical drawing assembly also includes a device for selecting one of the accompaniment melodies, and a device for selecting a musical instrument that corresponds to one of the different musical instruments. A controller is configured to output the selected one of the accompaniment melodies to an output device during the drawing movement and to output one of the instrumental melodies that corresponds to the selected instrument to the output device in response to the drawing movement.

Abstract: A remotely-controlled crib toy generates audio and/or video sensible output in response to user commands received by a remote control system. The nature and duration of the sensible output can be selected by the user. The sensible output is selected to be soothing to an infant.

Abstract: The flute terminus or carry out of a microdrill is located spaced from cross-sectional changes of the drill and away from such areas of stress concentration and permits a slight flexing of the drill to compensate for standard production environment in efficiencies such as spindle runout, nonperpendicularity of drill to workpiece and workpiece material which is not homogeneous.