FIG. 1 is a front elevation view of A muffler for a motor scooter, showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a front perspective view thereof;

FIG. 5 is a right rear perspective view thereof; and,

FIG. 6 is a left rear perspective view thereof.

The broken lines are for illustrative purposes only and form no part of the claimed design.