The ornamental design for a faucet handle, as shown and described.
FIG. 1 is a perspective view of a faucet handle showing my new design;
FIG. 2 is a first side view thereof;
FIG. 3 is a second side view thereof;
FIG. 4 is an end view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom view thereof.
The broken lines shown in FIG. 6 of the drawings are included for the purposes of illustrating a portion of the faucet that forms no part of the claimed design.