What is claimed is the ornamental design for an ornament, as shown and described.
FIG. 1 illustrates a top front perspective view of an ornament, showing our new design;
FIG. 2 illustrates a front view thereof;
FIG. 3 illustrates a back view thereof;
FIG. 4 illustrates a left-side view thereof; note, a right-side view is not depicted; however, a right-side view is a mirror image of the left-side view;
FIG. 5 illustrates a top view thereof; and,
FIG. 6 illustrates a bottom view thereof.
The broken lines in the figures depict portions of the ornament that form no part of the claimed design.