The ornamental design for a interchangeablepillow covering, as shown and described.
FIG. 1 is a front perspective view of the interchangeable pillow covering illustrating the Applicant's new design.
FIG. 2 is a front view of the interchangeable pillow covering.
FIG. 3 is a rear view of the interchangeable pillow covering.
FIG. 4 is a left view of the interchangeable pillow covering.
FIG. 5 is a right view of the interchangeable pillow covering.
FIG. 6 is a top view of the interchangeable pillow covering; and,
FIG. 7 is a bottom view of the interchangeable pillow covering.
The view labels used herein to denote front, rear, top, bottom, left, and right views are for convenience only and should not be interpreted as limiting the orientation of the interchangeable pillow covering.
The shade lines in the Figures show contour and not surface ornamentation.
The portions shown in broken lines do not form part of the claimed design.