The ornamental design for a drinkingvesselstand, as shown and described.
FIG. 1 is a front perspective view of a drinking vessel stand, showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof;
FIG. 8 is a front perspective view thereof, in a condition of use;
FIG. 9 is a front view thereof;
FIG. 10 is a rear view thereof;
FIG. 11 is a left side view thereof;
FIG. 12 is a right side view thereof;
FIG. 13 is a top view thereof; and,
FIG. 14 is a bottom view thereof.
The broken lines depicting the bottom surface in FIGS. 7 and 14 and the drinking vessel in FIGS. 8-13 show features that form no part of the claimed design.