The ornamental design for a wastebasket, as shown and described.
FIG. 1 is a front perspective view of a waste basket showing my new design;
FIG. 2 is an end elevational view, the opposite end being identical
thereto;
FIG. 3 is a front elevational view, the rear being identical thereto;
FIG. 4 is a top plan view thereof; and
FIG. 5 is a fragmentary front perspective view of a second embodiment of a
waste basket, the only difference residing in the configuration of the top
piece.