The ornamental design for a waist trimmer, as shown and described.
The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.
FIG. 1 is a front and right side perspective view of a waist trimmer, showing my new design;
FIG. 2 is a front perspective view thereof;
FIG. 3 is a rear perspective view thereof;
FIG. 4 is a front elevation view of FIG. 1 thereof, showing only the waist trimmer body in an open configuration;
FIG. 5 is a rear elevation view of FIG. 4 thereof;
FIG. 6 is a front elevation view of the bands of the waist trimmer; and,