FIG. 1 is a perspective view of a piping bag embodying a first embodiment of my design, showing the piping bag expanded and in a closed use configuration with environment;
FIG. 2 is a rear perspective view of the piping bag of FIG. 1, shown partly open;
FIG. 3 is a front elevation view thereof shown flat, the rear elevation being a mirror image thereto;
FIG. 4 is a right side elevation thereof, the left side elevation being a mirror image thereto;
FIG. 5 is a top view thereof;
FIG. 6 is a perspective view of a piping bag embodying a second embodiment of my design, showing the piping bag expanded and in a closed use configuration with environment;
FIG. 7 is a rear perspective view of the piping bag of FIG. 6, shown partly open;
FIG. 8 is a front elevation view thereof shown flat, the rear elevation being a mirror image thereto;
FIG. 9 is a right side elevation thereof, the left side elevation being a mirror image thereto;
FIG. 10 is a top view thereof;
FIG. 11 is a perspective view of a piping bag embodying a third embodiment of my design, showing the piping bag expanded and in a closed use configuration with environment;
FIG. 12 is a rear perspective view of the piping bag of FIG. 11, shown partly open;
FIG. 13 is a front elevation view thereof shown flat, the rear elevation being a mirror image thereto;
FIG. 14 is a right side elevation thereof, the left side elevation being a mirror image thereto; and,
FIG. 15 is a top view thereof.
The broken lines shown in FIGS. 1, 6, and 11 depict environmental subject matter that forms no part of the claimed design.