We claim the ornamental design for a spinning handle, as shown and described.
FIG. 1 is a top perspective view of a spinning handle;
FIG. 2 is a left side view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a rear elevational view therof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof, the undisclosed bottom is not part of the claimed design.
The broken lines immediately adjacent the shaded areas represent the bounds of the claimed design while all other broken lines are directed to environment and form no part of the claimed design.