Accessory for helmet

[0001]FIG. 1 is a front elevational view of an accessory for helmet, showing the new design;

[0002]FIG. 2 is a front, left-side, top perspective view thereof;

[0003]FIG. 3 is a left-side elevational view thereof, the right-side elevational view (not provided) being a mirror-image thereof;

[0004]FIG. 4 is a rear, left-side, bottom perspective view thereof;

[0005]FIG. 5 is a rear elevational view thereof;

[0006]FIG. 6 is a top plan view thereof; and,

[0007]FIG. 7 is a bottom plan view thereof.

[0008]The broken lines depict parts of the accessory for helmet that form no part of the claimed design.