An interchangeable attachment device comprising: a first attachment interface arranged to support a first component; a second attachment interface supporting at least one second component (106, 108); wherein the first and second attachment interfaces (102, 104) define cooperating attachment portions, respectively, arranged for securing an end portion of the first attachment interface to an end portion of the second attachment interface to form an attachment junction defined along the width of both the first and second attachment interfaces (102, 104), whereat the first and second attachment interfaces (102, 104) are coextensive with one another, wherein the attachment portion of the first attachment interface comprises a protruding portion arranged to slidably engage a receiving portion in an insertion direction (D INS) parallel with the width of the attachment junction and defined by the second attachment interface, the interchangeable attachment device being characterized in that the protruding portion is located between opposed shoulders of a body of the first attachment interface on opposed sides along the width of the attachment junction, the opposed shoulders being arranged to abut a corresponding portion of a top-most surface of a body of the second attachment interface in an attached configuration such that the interchangeable attachment device forms a smooth, continuous, and substantially unitary structure with no gaps defined between the abutting surfaces of the end portions of the first and second attachment interfaces (102, 104) and along side portions of the first and second attachment interfaces (102, 104). a first attachment interface arranged to support a first component; a second attachment interface supporting at least one second component (106, 108); wherein the first and second attachment interfaces (102, 104) define cooperating attachment portions, respectively, arranged for securing an end portion of the first attachment interface to an end portion of the second attachment interface to form an attachment junction defined along the width of both the first and second attachment interfaces (102, 104), whereat the first and second attachment interfaces (102, 104) are coextensive with one another, wherein the attachment portion of the first attachment interface comprises a protruding portion arranged to slidably engage a receiving portion in an insertion direction (D INS) parallel with the width of the attachment junction and defined by the second attachment interface, the interchangeable attachment device being characterized in that the protruding portion is located between opposed shoulders of a body of the first attachment interface on opposed sides along the width of the attachment junction, the opposed shoulders being arranged to abut a corresponding portion of a top-most surface of a body of the second attachment interface in an attached configuration such that the interchangeable attachment device forms a smooth, continuous, and substantially unitary structure with no gaps defined between the abutting surfaces of the end portions of the first and second attachment interfaces (102, 104) and along side portions of the first and second attachment interfaces (102, 104).