The ornamental design for a foldable surfboardstand, as shown and described.
FIG. 1 is a perspective elevated front view of a surfboard stand having the new design, in fully deployed position, supporting a surfboard. The surfboard itself is depicted in dashed lines, and is not a part of the design of the current invention.
FIG. 2 is a rear perspective view of the surfboard stand shown in FIG. 1.
FIG. 3 is a view from above of the surfboard stand shown in FIG. 1.
FIG. 4 is a front view of the surfboard stand shown in FIG. 1.
FIG. 5 is a rear view of the surfboard stand shown in FIG. 1.
FIG. 6 is a view from below of the surfboard stand shown in FIG. 1.
FIG. 7 is a left side view of the surfboard stand of FIG. 1; and,
FIG. 8 is a right side view of the surfboard stand of FIG. 1.