Abstract: A beverage container coupler includes a body defining a first cavity open on a first side of the body and configured for removably retaining a first beverage container, a second cavity open on a second side of the body opposite the first side and configured for removably retaining a second beverage container in proximity with the first beverage container, and a fluid path open between the first cavity and the second cavity. The beverage container coupler further includes a puncturing element at least partially positioned within the first cavity.