The ornamental design for a can handle, as shown and described.
FIG. 1 is a left side view of a can handle showing my new design with the right side a mirror image and the dashed lines indicating features not part of my claimed design whereof;
FIG. 2 is a rear view whereof;
FIG. 3 is a top view whereof;
FIG. 4 is bottom view whereof;
FIG. 5 is a right, rear, top perspective view whereof; and
FIG. 6 is a right, front, top perspective view whereof, with matter inside the dashed lined rectangles not part of my claimed design; and,
FIG. 7 is a left side view of the can handle of FIGS. 1-6 in an environment in which it can be used, attached to a can-encircling band, which can be further used in the environment of FIG. 8, a right side view of the same encircling a No. 10 coffee can, with dashed lines indicating features not part of my claimed design.