The ornamental design for customizable signage, as shown and described.
FIG. 1 is a top perspective view of customizable signage showing my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a rear perspective view thereof; and,
FIG. 7 is a right-side elevation view, the left side elevation view being a mirror image thereof.
The appearance of any portion of the article between the break lines forms no part of the claimed design. The customizable signage is shown with symbolic breaks in length. The appearance of any portion of the article between the break lines forms no part of the claimed design.
The broken line showing of elements in the customizable signage illustrate portions of the article and form no part of the claimed design.