A first vessel provided in spaced nested relation to and at least partially around a second vessel or member, the first vessel having a bottom section coupled to a sidewall to form a liquid receiving receptacle open at an upper end of the sidewall. Further provided is liquid in the liquid receiving receptacle. The second vessel or member is moveable relative to the first vessel to displace and/or replace the liquid in the first vessel such that the first vessel can produce different pitches and/or tones as or after the liquid is displaced and/or replaced and the first vessel is struck, rubbed or otherwise vibrated.

The invention relates to a composite comprising matrix material and organic natural fiber material. The composite may be a compound, a granulate, or at least a part of a sound reproduction device. The composite may be made by injection molding. According to an embodiment a composite comprises matrix material and organic natural fiber based material, wherein the matrix material comprises a thermoplastic polymer matrix. The composite may comprise a relative sound wave resistance of 1500-5000. The composite may comprise a relative damping of sound radiation of 1.5-5.0. The composite may comprise a dynamic modulus of 2000-11000 measured according to ISO 6721-3. The composite may comprise a relative acoustic quality factor of 5-200. The composite may comprise a relative factor of viscous damping of 0.500-0.005.

A personal grooming device a body defining a grasping surface defining an outer portion and an inner portion, as well as groups of members extending directly from the inner portion at varying depth so that the members are capable of playing a musical note or notes.

A personal grooming device a body defining a grasping surface defining an outer portion and an inner portion, as well as groups of members extending directly from the inner portion at varying depth so that the members are capable of playing a musical note or notes.