I claim, an ornamental design for a foot rest, as shown and described.
FIG. 1 is a top front perspective view of a foot rest, showing my new design;
FIG. 2 is a top rear perspective view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a side elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a sectional view taken along line 8-8 as shown in FIG. 1; and,
FIG. 9 is a sectional view taken along line 9-9 as shown in FIG. 1.
The broken-lines shown in the drawings represent portions of the article that form no part of the claimed design. References to “side,” “top,” “bottom,” “front,” and “rear” in the Figure Descriptions are not meant to require any specific orientation of the article as viewed.