I claim the ornamental design for a shoe treat, as shown and described.
FIG. 1 is a top perspective view of a shoe treat;
FIG. 2 is a top view thereof;
FIG. 3 is a bottom view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a rear side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a left side view thereof; and,
FIG. 8 is a bottom perspective view thereof.
The ornamental design which is claimed is shown in solid lines in the drawings. The broken lines of equal length dashes in the drawings are for illustrative purposes, depict environmental subject matter, and form no part of the claimed design.