Lock Accessory

FIG. 1 is a perspective view of a lock accessory in accordance with my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a top plan view thereof.

The broken lines show portions of the lock accessory that form no part of the claimed design.