The ornamental design for a fire and waterdisplayassembly, as shown and described.
FIG. 1 is a front isometric view of an embodiment of a fire and water display assembly showing our new design.
FIG. 2 is a front elevation view of the fire and water display assembly of FIG. 1. The front elevation view is the same as the back and side elevation views; and,
FIG. 3 is a top plan view of the fire and water display assembly of FIG. 1.
Any broken lines in the drawings are for illustrative purposes only and form no part of the claimed design.