The ornamental design for an interlockingplushtoy, as shown and described.
FIG. 1 is a front view of an interlocking plush toy showing the new design;
FIG. 2 is a back view of the embodiment of FIG. 1;
FIG. 3 is a right side view of the embodiment of FIG. 1;
FIG. 4 is a left side view of the embodiment of FIG. 1;
FIG. 5 is a top plan view of the embodiment of FIG. 1;
FIG. 6 is a bottom plan elevational view of the embodiment of FIG. 1; and,
FIG. 7 is a front view of the embodiment of FIG. 1 showing the interlocked hand and foot with another embodiment.
Surface shading is used to shade FIGS. 1-7 to show clearly the character and contour of all surfaces of the 3-dimensional aspects of the design and form a part of the design sought to be protected. Broken lines are shown for illustrative purposes only and form no part of the claimed design.