Abstract: A mouthpiece is described that can be used with a water pipe to improve hygiene and performance of the water pipe. A cylindrical first portion fits within an opening of a water pipe and a substantially conical portion provides a substantially airtight seal with a smoker's mouth. The conical portion is constructed from a flexible material that deforms to fit the profile of the smoker's mouth. The cylindrical portion is constructed from a material that provides a snug friction fit with the opening.

Abstract: A tabletop display device that displays a continuously breaking wave of water. The device has a water reservoir that holds a small volume of water. A contoured surface is provided. The contoured surface is concave between the bottom end and the top end. A pump is used to produce a stream of water. The stream of water is directed against the bottom of the contoured surface. The stream of water is directed upwardly and curls over by the concave shape of the contoured surface. The flow of water then falls back from the elevated position, therein creating a continuously breaking wave. A figure is provided that floats on the stream of water and appears to be riding the breaking wave.