I claim the ornamental design for a pocket adornment, as shown and described.
FIG. 1 is a front elevational view of a pocket adornment showing my new design, where the broken lines showing portions of a person and clothing are included for illustrating environmental structure and form no part of the claimed design.
FIG. 2 is a perspective view of the invention;
FIG. 3 is a rear elevational view of the invention;
FIG. 4 is a front elevational view of the invention;
FIG. 5 is a left-side elevational view of the invention, the right-side elevational view being a mirror image thereof;