The ornamental design for a flowerarrangementholder, as shown and described.
The design is for an ornamental arrangement holder. The holder may be placed on the top of a vase or other container. It has spaces through which flower, or other plant stems (natural or artificial) or other items may be disposed and to construct an arrangement of such flower or items with respect to the vase or other container. The holder may alternatively be placed on the vase or container alone, without flowers or other items. The holder may also be displayed alone, without a vase or container.
FIG. 1 is a top plan view of the flower arrangement holder showing my new design;
FIG. 2 is a side view of the flower arrangement holder of FIG. 1, the opposite side being the same; and,
FIG. 3 is an end view of the flower arrangement holder of FIG. 1, the opposite end being the same.