The ornamental design for an ornament, as shown and described.
FIG. 1 is a bottom perspective view of a first embodiment of an ornament showing our new design;
FIG. 2 is a top perspective thereof;
FIG. 3 is a front view thereof, the back being identical;
FIG. 4 is a top view thereof;
FIG. 5 is a bottom view thereof;
FIG. 6 is a side view thereof, the opposite side being identical;
FIG. 7 is a bottom perspective view of a second embodiment of an ornament showing our new design;
FIG. 8 is a top perspective view thereof;
FIG. 9 is a front thereof, the back being identical;
FIG. 10 is a top view thereof;
FIG. 11 is a bottom view thereof; and,
FIG. 12 is a side view thereof, the opposite side being identical.
The evenly spaced broken lines are included for purposes of illustrating environment and form no part of the claimed design. The dash-dot-dash lines disclaim surface ornamentation and the surface surrounding the dash-dot-dash lines is part of the claimed design.