The ornamental design for a yard and gardenornament, as shown and described.
FIG. 1 is a perspective view of the yard and garden ornament of my new
design;
FIG. 2 is a front elevational view thereof, the rear view being a mirror
image thereof; and,
FIG. 3 is a top plan view of the yard and garden ornament of my new design;
the bottom view, the right side view and left side view being identical
thereto.