A plastic grid or framework arrangement is used to support and position a series of bowls that hold flower arrangements, candles, letters, and other decorative elements. This grid is deployable in water fountains, indoor and outdoor pools, and other small bodies of water during festive occasions or for longer term decorative display. A special feature of this invention is that the grid itself does not float and is positioned below the surface of the water, and thus is not readily visible. Buoyancy is provided at the hubs that form nodes in the grid. The hubs also support floating bowls containing various decorative elements. The resulting effect is that the various decorative elements appear to be floating on the surface while the sub-surface grid structure maintains their relative positioning, keeping the bowls from clumping together at the edges or in the corners of the pool or fountain. The framework can take the form of a grid or ring or other shapes and can be assembled quickly from a kit of components and can be easily dis-assembled and stored for future use.