The ornamental design for a skewerservingrack, as shown and described.
FIG. 1 is a top perspective view of a skewer serving rack showing our new design;
FIG. 2 is another top perspective view thereof, with the broken line showing of the skewers and the fork shown in FIG. 1 removed;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a right end elevational view thereof;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a left end elevational view thereof; and,
FIG. 7 is a top plan view thereof.
The bottom of the skewer serving rack is not part of the claimed design and therefore is not shown. The broken line showing of skewers hanging on the skewer serving rack and of the fork retaining posts and fork located on base of the skewer serving rack are for illustrative purposes only; the broken lines form no part of the claimed design.