The ornamental design for a decorativepillowcase, as shown and described.
FIG. 1 is a front, top side perspective view of a decorative pillowcase according to an embodiment of the new design;
FIG. 2 is a front side elevation view thereof;
FIG. 3 is a rear side elevation view thereof;
FIG. 4 is a right side elevation view thereof;
FIG. 5 is a left side elevation view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken lines shown in the drawings show portions of the decorative pillowcase that form no part of the claimed design. In particular, the area within the broken lines immediately below the exterior pocket trim forms no part of the claimed design. The broken lines immediately adjacent to the exterior pocket trim on the pillowcase side are feature lines that also form no part of the claimed design. Further, the broken lines on the rear side of the decorative pillowcase are features that form no part of the claimed design.