The ornamental design for merchandise display stand, as shown and described
.
FIG. 1 is a perspective view of a merchandise display stand showing our new
design from the front and right side, all sides being identical;
FIG. 2 is an enlarged top plan view thereof;
FIG. 3 is a perspective view of a second embodiment of our merchandise
display stand from the front and right side, all sides being identical,
the only difference being the square shape of the trays; and,