The ornamental design for a decorativeelement for sunglasses (rock), as shown and described.
FIG. 1 is a front perspective view of a portion of a decorative element for sunglasses (rock) showing my new design;
FIG. 2 is a left view of the portion of a decorative element for sunglasses (rock) shown in FIG. 1;
FIG. 3 is a right view of the portion of a decorative element for sunglasses (rock) shown in FIG. 1;
FIG. 4 is a top view of the portion of a decorative element for sunglasses (rock) shown in FIG. 1;
FIG. 5 is a bottom view of the portion of a decorative element for sunglasses (rock) shown in FIG. 1;
FIG. 6 is a front view of the portion of a decorative element for sunglasses (rock) shown in FIG. 1; and,
FIG. 7 is a rear view of the portion of a decorative element for sunglasses (rock) shown in FIG. 1.
The broken line showing of the sunglasses frame, portions of the arms, screws, and hinges is for illustrative purposes only and forms no part of the claimed design.