Hollow hand-held storage device for storing items

A hollow hand-held storage device for storing items, comprising at least:

• a hollow body formed by fusion bonding of plastic pellets to form a cylindrical body having a chamber, wherein a cross-section of a central portion of the hollow body is defined as a central plane;
• a first end being an opening located at one end of the hollow body and communicating with the chamber;
• and
• a second end being a closed end located at the other end of the hollow body;
• wherein a portion of the hollow body between the first end and the central plane is defined as an upper body, a portion of the hollow body between the second end and the central plane is defined as a lower body, and the cylindrical body has different thicknesses, being selected from a group consisting of the thickness of the cylindrical body in the upper body being greater than the thickness in the lower body, and the corresponding two side surfaces of the cylindrical body in the lower body having different thicknesses, so that when the central portion or the lower body of the hollow body receives a gripping force, a deformation of the hollow body is selected from a group consisting of the deformation of the lower body being greater than the deformation of the upper body, and the two side surfaces of the lower body having different deformations.