A method of fabricating an insulating container for hot drinks or the like, comprising: providing a generally frusto-conical shell and a generally frusto-conical cup body, wherein a thermo-sealable plastic coating is coated over the entire inner surface of the shell, and bonding the cup body and the shell by: - heating the thermo-sealable plastic coating to its melting point: - inserting said cup body into said shell until an outside surface of the cup body seats against the inner surface of the shell along a contact path, so that the melted thermo-sealable plastic coating extends at least along said contact path - locating a first member with at least one radially displaceable pressing member inside the cup body and a second member on an opposite side of the shell and cup body; and - displacing said pressing member towards said second member to press the shell and cup wall together with sufficient pressure to cause the melted thermo-sealable plastic coating to form a bond between the shell and cup wall, which bond is only localized within said contact path, formed between cup body and shell, wherein the shell and cup body are pressed together at a plurality of locations to form a plurality of discrete bonding spots and/or bonding areas, along the contact path, all separated from each other by bonding-free parts of said contact path. providing a generally frusto-conical shell and a generally frusto-conical cup body, wherein a thermo-sealable plastic coating is coated over the entire inner surface of the shell, and bonding the cup body and the shell by: - heating the thermo-sealable plastic coating to its melting point: - inserting said cup body into said shell until an outside surface of the cup body seats against the inner surface of the shell along a contact path, so that the melted thermo-sealable plastic coating extends at least along said contact path - locating a first member with at least one radially displaceable pressing member inside the cup body and a second member on an opposite side of the shell and cup body; and - displacing said pressing member towards said second member to press the shell and cup wall together with sufficient pressure to cause the melted thermo-sealable plastic coating to form a bond between the shell and cup wall, which bond is only localized within said contact path, formed between cup body and shell, wherein the shell and cup body are pressed together at a plurality of locations to form a plurality of discrete bonding spots and/or bonding areas, along the contact path, all separated from each other by bonding-free parts of said contact path. - heating the thermo-sealable plastic coating to its melting point: - inserting said cup body into said shell until an outside surface of the cup body seats against the inner surface of the shell along a contact path, so that the melted thermo-sealable plastic coating extends at least along said contact path - locating a first member with at least one radially displaceable pressing member inside the cup body and a second member on an opposite side of the shell and cup body; and - displacing said pressing member towards said second member to press the shell and cup wall together with sufficient pressure to cause the melted thermo-sealable plastic coating to form a bond between the shell and cup wall, which bond is only localized within said contact path, formed between cup body and shell, wherein the shell and cup body are pressed together at a plurality of locations to form a plurality of discrete bonding spots and/or bonding areas, along the contact path, all separated from each other by bonding-free parts of said contact path.