The ornamental design for a decorativescarabnovelty, as shown and described.
FIG. 1 is a front perspective view of the embodiment of the decorative scarab novelty.
FIG. 2 is a front view of the embodiment of the decorative scarab novelty;
FIG. 3 is a rear view of the embodiment of the decorative scarab novelty;
FIG. 4 is a left-side view of the embodiment of the decorative scarab novelty;
FIG. 5 is a right-side view of the embodiment of the decorative scarab novelty;
FIG. 6 is a top view of the embodiment of the decorative scarab novelty; and,
FIG. 7 is a bottom view of the embodiment of the decorative scarab novelty.
The dashed lines showing in the figures are included for the purpose of illustrating portions of the decorative scarab novelty that form no part of the claimed design.