Abstract: A thin-walled cup is formed of a single piece of polymeric material having a uniform thickness throughout the extent of the single piece of polymeric material. The cup has an outer chamber which extends around an inner chamber. The outer chamber holds a first liquid and the inner chamber holds a second liquid. The liquid in the inner chamber is mixed with the liquid in the outer chamber during drinking from the cup. The cup is made by a thermoforming process. The thermoforming process may include embossing indicia on the cup.

Abstract: A thin-walled cup is formed of a single piece of polymeric material having a uniform thickness throughout the extent of the single piece of polymeric material. The cup has an outer chamber which extends around an inner chamber. The outer chamber holds a first liquid and the inner chamber holds a second liquid. The liquid in the inner chamber is mixed with the liquid in the outer chamber during drinking from the cup.

Abstract: An apparatus for use in drinking liquid includes first and second drinking vessels. A connector extends between the drinking vessels. A passage may be provided in the connector. Two people can drink from the drinking apparatus at one time. When two people are drinking from the drinking apparatus, liquid flows between the passage in the connector and the first and second drinking vessels.