The ornamental design for a phoneshoulderholster, as shown and described.
FIG. 1 is a side view of a design of a phone shoulder holster;
FIG. 2 is an opposite side view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is perspective view thereof showing the environment; and,
FIG. 6 is a perspective view of a second embodiment of the design of the phone shoulder holster of FIGS. 1-5 and showing the environment, the only difference being the incorporation of chains, it being understood that all other features are the same as those of the first embodiment.
The broken lines show environmental structure and form no part of the claimed design.