Piggy Bank

FIG. 1 is a first perspective view of a piggy bank showing my new design;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is an enlarged portion view taken from encircled portion labeled, “ 9 ,” in FIG. 2 .

The dot-dashed broken lines shown in FIGS. 2 and 9 illustrate the boundary lines of the enlarged portion view of FIG. 9 and form no part of the claimed design. The even dashed broken lines shown in the drawings represent portions of the piggy bank that form no part of the claimed design.