Abstract: A protective case protects a communication device and an item, such as credit cards and money. The protective case is fabricated from a material inhibiting moisture, providing buoyancy, and minimizing shock forces. The protective case comprises a first compartment for storage of the communication device and a second compartment for storage of the item. A lid having a seal inhibits passage of moisture in the compartments. A grip portion enhances grip of the protective case. A tethering portion enables tethering of the protective case to a user. A tether locking portion, slides along the tethering portion for length adjustment. An aperture aligns with a socket in the communication device receiving a cable carrying a signal to the communication device. A cap inhibits passage of moisture into the aperture. At least one opening in the protective case enables detachable attachment of the tethering portion and a fastener.

Abstract: An inflatable coupling device prevents loss of the fastening mechanism in a liquid. The device comprises a coupling portion that detachably couples to a fastening mechanism and a remote fastening mechanism having a cavity. The coupling portion serves as a bridge, joining the fastening mechanism to the remote fastening mechanism. A coupling extension joins the coupling portion to the fastening mechanism. A buoyant portion positions inside the remote fastening mechanism and resiliently expands upon engagement with a liquid. This expansion enables floatation of the coupling portion and the attached fastening mechanism. The liquid controllably flows into the cavity of the remote fastening mechanism through an inlet portion and a membrane. A composition in the cavity creates a chemical reaction upon engagement with the liquid releasing a gas. The gas creation happening in the buoyant portion as the composition tablet is stored within the balloon.