The ornamental design for foot scrubber, as shown and described.
FIG. 1 is a top, front, ride side, perspective view of the present invention;
FIG. 2 is front elevation view of the present invention;
FIG. 3 is a left side elevation view, the right side elevation being mirror image of the present invention;
FIG. 4 is a rear elevation view;
FIG. 5 is a top plan view of the present invention;
FIG. 6 is a bottom plan view of the present invention; and,
FIG. 7 is a top, front, ride side to illustrate the lower pad ends of FIG. 1 of the present invention.
The cylindrical pole section of the scrubber is cut in half and separated for the purpose of fitting an entire view on as single sheet, it being understood the length of the pole section is equal to the sum of the two halves shown.