Abstract: Dual-wall container includes an outer wall that is at least one of at least partially substantially transparent and at least partially substantially translucent, an inner wall adapted to contain a substance, at least one symbol arranged an outer surface of the inner wall, and at least one of a coating of a thermochromatic composition arranged on the outer surface of the inner wall, a thermochromatic composition layer arranged on the outer surface of the inner wall, and a thermochromatic composition arranged on an outer surface of at least the at least one symbol. The thermochromatic composition is structured and arranged to change color when the inner wall experiences or senses a temperature change. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: Dual-wall container includes an outer wall that is at least one of at least partially substantially transparent and at least partially substantially translucent, an inner wall adapted to contain a substance, at least one symbol arranged an outer surface of the inner wall, and at least one of a coating of a thermochromatic composition arranged on the outer surface of the inner wall, a thermochromatic composition layer arranged on the outer surface of the inner wall, and a thermochromatic composition arranged on an outer surface of at least the at least one symbol. The thermochromatic composition is structured and arranged to change color when the inner wall experiences or senses a temperature change. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: A novelty waterfall that includes at least one water flow surface, a pump, and a sensor that detects a change of presence of an item. The novelty waterfall further includes a controller that is structured and arranged to operate the pump at least when the sensor detects the change of presence of the item. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.