The ornamental design for a cross-shaped display stand, as shown and described.
FIG. 1 is a front perspective view of a cross-shaped display stand in accordance with the present invention;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a front thereof, with the rear view being a mirror image;
FIG. 4 is a right side view thereof, with the left side view being a mirror image;
FIG. 5 is a top view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a front perspective view of another embodiment of a cross-shaped display stand in accordance with the present invention;
FIG. 8 is a rear perspective view thereof;
FIG. 9 is a front view thereof, with the rear view being a mirror image;
FIG. 10 is a right side view thereof, with the left side view being a mirror image;
FIG. 11 is a top view thereof; and,
FIG. 12 is a bottom view thereof.
The dot-dash lines are shown for the purpose of isolating the part of the article that embodies the claimed design and form no part of the claimed design.