An Internet of Thing (IoT) device includes a camera coupled to a processor; and a wireless transceiver coupled to the processor. Blockchain smart contracts can be used with the device to facilitate secure operation.

An Internet of Thing (IoT) sport device includes a sensor coupled to a processor; and a wireless transceiver coupled to the processor.

An Internet of Thing (IoT) sport device includes a body with a processor, a camera and a wireless transceiver coupled to the processor.

An Internet of Thing (IoT) device includes a body and sensors including a camera and an accelerometer; a processor; and a wireless transceiver coupled to the processor.

An Internet of Thing (IoT) device includes a camera coupled to a processor; and a wireless transceiver coupled to the processor. Blockchain smart contracts can be used with the device to facilitate secure operation.

An Internet of Thing (IoT) device includes a camera coupled to a processor; and a wireless transceiver coupled to the processor. Blockchain smart contracts can be used with the device to facilitate secure operation.

A set of diving devices and methods of using the same in, for example, a water-based game, are provided. The devices comprise two or more diving devices, each being configured to be tossed into a body of water and upon entry to cause a water entry noise that is distinct from water entry noises corresponding to each of the other diving devices in the set of diving devices. The distinctness of the water entry noise for each device in the set is due at least in part to at least one of a size of each of the diving devices, a shape of each of the diving devices, a density of each of the diving device, and/or a weight of each of the diving devices. The methods involve users attempting to retrieve devices based upon distinct water entry noises and/or emitted audio signals, with points being awarded thereupon.

A diving board having a shell including a top surface with one or more pockets formed thereon. The pockets are recessed inwardly from the top surface of the shell and sized to receive a non-slip tread surface therein. The tread surface may be made from any of a variety of suitable materials, such as a composite material primarily comprising cork, and arranged such that the tread surface is substantially flush relative to the top surface of the shell when seated therein. An adhesive layer may be used to adhere the tread surface in the pocket of the shell.

An Internet of Thing (IoT) device includes a sensor coupled to a processor; and a transceiver coupled to the processor. Blockchain smart contracts can be used with the device to facilitate secure operation.

An Internet of Thing (IoT) device includes a camera coupled to a processor; and a wireless transceiver coupled to the processor. Blockchain smart contracts can be used with the device to facilitate secure operation.