Abstract: A device for altering the musical sounds produced by string instruments is disclosed. The device is adapted to be reversibly wrapped around and attached to a set of strings of a string instrument. The device includes a top portion and a bottom portion; an exterior surface and an interior surface; a sound altering material located on the interior surface at a location that is configured to make contact with the set of strings when the device is attached to a string instrument; one or more compartments located on the exterior surface that are configured to receive and hold a pick; and an aperture located on the exterior surface that is configured to receive and hold a string instrument tuner.

Abstract: A guitar clamp is disclosed that can be used to secure the neck portion of a guitar within a guitar case. The guitar clamp includes a base component that has a guitar neck support surface; a left side that is contiguous with the support surface; and a right side that includes a first wall, which protrudes outward from the support surface. The guitar clamp further includes a top component that has a clamp surface that is configured to rest adjacent to a set of strings of the guitar neck; a right side that is contiguous with the clamp surface; and a left side that includes a second wall, which protrudes outward from the clamp surface. The base component is configured to be combined with the top component, such that the base component and top component securely surround a portion of the guitar neck. Guitar cases that include such guitar clamps are also disclosed.

Abstract: A utility cart that is capable of being converted into a collapsed position, a flat cart position, a dolly position, and a tilted position. The utility cart generally includes an interconnected frame that includes three sections, namely, a first section connected to a second section by a first joint, with the second section further being connected to a third section by a second joint. The utility cart also includes a fourth section (a base), which has a set of wheels affixed thereto. The utility cart further includes a support arm mechanism that attaches to the second section at a first end and to a bottom portion (of the base) of the utility cart at a second end. The second end of the support arm mechanism may be reversibly securable to a plurality of different points along the bottom portion of the utility cart.