The ornamental design for a harness and tether for baby items, as shown and described.
FIG. 1 is a front perspective view of a harness and tether according to the present invention with a baby bottle at the end of the tether and not forming part of the claimed invention.
FIG. 2 is a rear view of the harness and tether shown in FIG. 1.
FIG. 3 is a right side view of the harness and tether shown in FIG. 1. The left side view may be identical to the right side view.
FIG. 4 is a top view of the harness and tether shown in FIG. 1; and,
FIG. 5 is a bottom view of the harness and tether shown in FIG. 1.