Abstract: A swivel hook assembly for use primarily for attaching musical instruments, such as a drum or a pair of drums or other percussion instruments, to the torso of a person, so that the person has both hands free to grasp drumsticks or mallets to play the instruments, particularly when marching. The entire assembly is preferably formed from stamped metal parts and is provided with a slot forming member through which a carrying strap or harness may pass, which slot forming member is provided with a pair of openings at its extremities for the reception of hooks usually attached to straps surrounding the torso of the person playing the instruments. A strap extending across at least one of the shoulders of the person passes or is looped through the slot to properly position the assembly.

Abstract: The method of manufacturing shells of plastic material, such as methyl methacrylate, for percussion musical instruments. The shells are formed from flat pieces of plastic material which may be clear plastic, transparent colored or opaque plastic material of one or more colors. The invention contemplates providing an infinitesimal number of color design combinations. After the pieces of plastic material are cut, prepared and fastened together by novel methods, the material is formed into a cylindrical product which is joined at one location to provide an integral shell. By cutting the flat pieces of plastic material in various ways and joining them together, an extremely wide range of different visual designs are produced.