Abstract: A plastic beverage container attachment of the present invention having a curved or beveled section is releasably attachable at its base to the top of a metal or aluminum beverage can, or to the top of a plastic or Styrofoam drink cup or container. The interior of the beveled portion of the attachment comprises an internal concave portion or reservoir, and curved funneled surfaces, that hold and regulate the volume and rate of flow of the beverage and thus inhibit its sudden rush from the container to the drinker's mouth, thus permitting the consumer to enjoy a more gentle beverage flow. An edge is molded around the interior of the base of the container to enable the attachment to firmly snap on and off the top of the container or can. A series of posts or projections are placed around the interior of the base, just above the edge, so as to aid in the support of the attachment on the can or container.