The ornamental design for the plush toy, as shown and described.
FIG. 1 is an elevated front right perspective view of a plush toy, with dashed lines indicating stitching, phantom lines showing optional design and shading showing contour.
FIG. 2 is a left side view of a plush toy, with dashed lines indicating stitching, phantom lines showing optional design and shading showing contour.
FIG. 3 is a right side view of a plush toy, with dashed lines indicating stitching, phantom lines showing optional design and shading showing contour.
FIG. 4 is a front view of a plush toy, with dashed lines indicating stitching, phantom lines showing optional design and shading showing contour.
FIG. 5 is a back view of a plush toy, with dashed lines indicating stitching, phantom lines showing optional design and shading showing contour.
FIG. 6 is a top view of a plush toy, with dashed lines indicating stitching, phantom lines showing optional design and shading showing contour.
FIG. 7 is a bottom view of a plush toy, with dashed lines indicating stitching, phantom lines showing optional design and shading showing contour; and,
FIG. 8 is a cross-section side view taken along line 6-6 in FIG. 6.