The ornamental design for a light resembling a key, substantially as shown and described.
FIG. 1 is a perspective view of an ornamental design for a light resembling a key;
FIG. 2 is another perspective view thereof;
FIG. 3 is view of a first side thereof;
FIG. 4 is a view of a second side thereof;
FIG. 5 is a view of a third side thereof;
FIG. 6 is a view of a fourth side thereof;
FIG. 7 is a view of a first end thereof; and,
FIG. 8 is a view of a second end thereof.
Broken lines (dashed lines) in the DRAWING indicate unclaimed parts of the article that are not claimed herein, and form no part of the claimed design.