The ornamental design for an ovalsinkmat, as shown and described.
FIG. 1 is a perspective view of a preferred embodiment of the oval sink mat;
FIG. 2 is a front view of the oval sink mat shown in FIG. 1;
FIG. 3 is a rear view of the oval sink mat shown in FIG. 1;
FIG. 4 is a top side view of the oval sink mat shown in FIG. 1; and,
FIG. 5 is a perspective cross-sectional view along line V—V of the oval sink mat shown in FIG. 2.
The broken lines shown in FIG. 2 of the drawings are included for the purpose of clearly indicating the area shown in the cross sectional view of FIG. 5, and form no part of the claimed design.