The ornamental design for a decorativewheel, as shown and described.
FIG. 1 is a perspective view of a decorative wheel showing my new design,
the side opposite being substantially a mirror image;
FIG. 2 is a front elevational view of a modified embodiment of the design
shown in FIG. 1, the side opposite being substantially a mirror image; and
FIG. 3 is a front elevational view of a second modified embodiment of the
design shown in FIG. 1, the side opposite being substantially a mirror
image.