The ornamental design for a goblet, as shown and described.
FIG. 1 is a front side elevational view of a goblet showing my new design,
the rear side and right and left side views being substantially identical
therewith;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof; and
FIG. 4 is a sectional view as taken along the line 4--4 in FIG. 1.