FIG. 1 is a perspective view of the mug design taken from above;

FIG. 2 is a perspective view of the mug design taken from below;

FIG. 3 is a right side elevation view of the mug design, with the left side elevation view being a mirror image of FIG. 3;

FIG. 4 is a front view of the mug design;

FIG. 5 is a back view of the mug design;

FIG. 6 is a top view of the mug design; and,

FIG. 7 is a bottom view of the mug design.

The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design.