I claim the ornamental design for an auxiliary wheelchair seat cushions, as shown and described.
FIG. 1 is a perspective view of an auxiliary wheelchair seat cushions, showing my new design in a deployed configuration;
FIG. 2 is a perspective view thereof, illustrated in a flat configuration;
FIG. 3 is a top plan view of FIG. 2;
FIG. 4 is a bottom plan view of FIG. 2;
FIG. 5 is a left-side elevational view of FIG. 2, the right-side elevational view being a mirror image thereof; and,
FIG. 6 is a front elevational view of FIG. 2, the rear elevational view being a mirror image thereof.
The broken lines showing a wheelchair in FIG. 1, and an attachment patch in FIG. 4, depict environmental matter and form no part of the claimed design. The remaining broken lines represent stitching, and are part of the claimed design.