FIG. 1 is a front, left and top perspective view of a first embodiment of a griddle accessory, showing my new design;
FIG. 2 is a rear, right and bottom perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is a front, left and top perspective view of a second embodiment of a griddle accessory, showing my new design;
FIG. 10 is a rear, right and bottom perspective view thereof;
FIG. 11 is a front view thereof;
FIG. 12 is a rear view thereof;
FIG. 13 is a left side view thereof;
FIG. 14 is a right side view thereof;
FIG. 15 is a top plan view thereof;
FIG. 16 is a bottom plan view thereof;
FIG. 17 is a front, left and top perspective view of a third embodiment of a griddle accessory, showing my new design;
FIG. 18 is a rear, right and bottom perspective view thereof;
FIG. 19 is a front view thereof;
FIG. 20 is a rear view thereof;
FIG. 21 is a left side view thereof;
FIG. 22 is a right side view thereof;
FIG. 23 is a top plan view thereof; and,
FIG. 24 is a bottom plan view thereof.
The broken lines in the figures illustrate portions of the griddle accessory that form no part of the claimed design.