Systems and methods relating to novel two-chambered drinking receptacles

A drinking receptacle comprising:

• a first component including:
• a first fluid chamber to hold first fluid and having defined therein, at one end, one or more fluid apertures that allow flow of first fluid in and/or out of said first fluid chamber;
• one or more pins disposed around an external surface of said first fluid chamber;
• a second component including:
• a second fluid chamber for holding second fluid, said second fluid chamber having defined therein a first opening disposed at one end of said second fluid chamber, and having defined therein a second opening disposed at an opposite end of said second fluid chamber, wherein said first opening allows receiving and/or dispensing fluid content inside said second fluid chamber and said second opening of said second fluid chamber allows receiving first fluid inside said second fluid chamber;
• a fluid-flow regulator designed to allow or restrict flow of first fluid into said second fluid chamber and comprising a regulating sidewall and a barrier, wherein said regulating sidewall has defined thereon one or more channels, each of which contains an open-configuration end and a closed-configuration end, and wherein said barrier has defined thereon said second opening that defines a flow path between said first fluid chamber and said second fluid chamber;
• wherein each of said pins disposed around said first fluid chamber slidably engages with each of said channels of said fluid flow regulator such that each of said pins is disposed at said closed-configuration end of said each channel to form a closed configuration of said second opening, in which flow through said flow path is closed;
• and
• wherein each of said pins is disposed at said open-configuration end of said each channels to form an open configuration of said second opening, in which flow through said flow path is open.