The ornamental design for a tear shapedurn, as shown and described.
FIG. 1 is a front view of a tear shaped urn of the present invention;
FIG. 2 is a rear view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a bottom plan view thereof; and,
FIG. 7 is a front perspective view thereof.
The broken lines used to form the interior stopper of the cremation urn form no part of the claimed design. The broken lines depict environment that forms no part of the claimed design.