Three-way marker for sewing

A marker ensemble comprising a multi-purpose marking tool for use in sewing and a sharpener, said multi-purpose marking tool comprising:

• a generally infundibulate shell with walls having an oval cross-section having a longitudinally extending cavity therethrough, said longitudinally extending cavity terminating at one end of said shell in an exit opening and an access opening at the other with a medially located lateral control slot in said shell, the walls of said generally infundibulate shell defining a mounting socket encompassing said access opening;
• an elongated retention sleeve having a collet at one end, said collet being adapted to pass through the exit opening of said generally infundibulate shell, said elongated retention sleeve being adapted to be disposed within said generally infundibulate shell;
• said elongated retention sleeve being adapted to longitudinally reciprocate within said generally infundibulate shell between an extended posture wherein said collet is uncompressed and a retracted posture in which said collet is compressed;
• a coiled compression spring encompassing said elongated retention sleeve, engaging an inner surface of said generally infundibulate shell and urging said elongated retention sleeve into said posture in which said collet is compressed;
• a control tab extending through said medially located lateral control slot in said shell and engaging said elongated retention sleeve, enabling said elongated retention sleeve to be urged against said compression spring into said extended posture wherein said collet is uncompressed;
• a reversible disk holder comprising a flattened cylindrical body having a medial retention ridge defined thereabout, said medial retention ridge adapted to reversibly mount in, and be retained within, said mounting socket in said generally infundibulate shell, said body having a pair of lugs extending longitudinally from each end thereof, each pair of lugs being adapted to rotably retain a marking disk therebetween;
• a marking disk with a circular periphery and a marking disk with a toothed periphery, the outer periphery of each said marking disk extending beyond said lugs, one said pair of lugs retaining the marking disk with a circular periphery, the other pair retaining the marking disk with a toothed periphery;
• and
• a cap adapted to removably mount, and be retained, upon either end of said reversible disk holder, encompassing one said marking disk when so mounted;
• and the sharpener comprising:
• a body having a passage therethrough with a blade secured to said body said blade having a sharpened edge, said sharpened edge protruding into said passage, said body of said sharpener having an exterior peripheral surface having an overall height of 25-40 mm with a relatively flat upper surface having a diameter of 50 to 60% of said height of said sharpener with said peripheral surface flaring gently outwardly from the relatively flat upper surface to a shoulder having a diameter which is both 60 to 70% of said height of said sharpener and greater than the diameter of said upper surface, said shoulder being at 90-99% of the height of said sharpener, said peripheral surface narrowing to a waist located at a height of 15-30% of the overall height of said sharpener, said waist having a diameter of 40-50% of the height of said sharpener, said peripheral surface flaring outwardly to a hip having a diameter at least 5-15% greater than the diameter of said waist, said hip being located between said waist and a lower surface.