The ornamental design for a scooter, as shown and described.
FIG. 1 is a perspective view of a scooter showing our new design;
FIG. 2 is a partial enlarged view of the left handlebar area from the top of FIG. 1;
FIG. 3 is a partial enlarged view of the stem area from the left side of FIG. 1;
FIG. 4 is a partial enlarged view of the deck area in FIG. 1;
FIG. 5 is a front view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a rear view thereof;
FIG. 8 is a left side view thereof;
FIG. 9 is a right side view thereof; and,
FIG. 10 is a partial enlarged view of the right handlebar area from the top of FIG. 1.
The broken lines in FIGS. 2-4 and 10 represent the boundaries of the enlarged partial views and form no part of the claimed design. The broken lines are for the purpose of illustrating portions of the scooter that form no part of the claimed design.