I claim the ornamental design for a handbag attachment, as shown and described.
FIG. 1 is a perspective view of a handbag attachment, showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a left-side elevational view thereof; and,
FIG. 7 is a rear elevational view thereof.
The broken lines showing a handbag, photographs, and additional attachments in FIG. 1 depict environmental matter and form no part of the claimed design.
The broken away symbols in the drawings indicate that any portion of the article beyond what is shown forms no part of the claimed design.