The ornamental design for a support for displayingitems, as shown and described.
FIG. 1 is a front elevation view of a support for displaying items showing our new design;
FIG. 2 is a rear elevation view thereof;
FIG. 3 is a left side elevation view thereof;
FIG. 4 is a right side elevation view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a top, front left side perspective view thereof; and,
FIG. 8 is an environmental view thereof.
The broken lines shown in FIG. 8 illustrate environmental features that form no part of the claimed design. The appearance of any portion of the support for displaying items between the break lines forms no part of the claimed design.