A footwear accessory device, having a frame assembly with a top face and a bottom face. The top face has first fastening means and the bottom face has a spring member with a spring force. Protruding from the frame assembly are first and second tabs and hinge arms. An actuating arm is hingedly mounted onto the frame assembly. The actuating arm further comprises longitudinal members, at least one transversal member, and locking members. The locking members receive their respective first and second tabs when the first and second tabs are biased towards their respective locking members, thus overcoming the spring force when a shoelace knot is positioned between the spring member and the actuating arm to cover a shoelace to prevent the loosening or untying of the tied shoelace knot. At least one interchangeable assembly has second fastening means that secures onto the first fastening means.