An apparatus for enabling consumers to seamlessly convert the contents of a sippable drink container into a handheld frozen comestible. The flow sensor can be coupled with an Application Specific Integrated Circuit that incorporates a signal conditioner and a memory module. In another embodiment, the turbine driven generator has a common shaft connected to the compressor to thereby eliminate the need for a separate motor to drive the compressor. Upon the back-and-forward linear movement of the slider relatively to the track rail, the projection moves in a way deforming the sealing members in expansioncollapse fashion, with keeping the close sliding engagement with the confronting fronts of the sealing members so that the sealing members keep constantly closing the clearance left open between the covering shells. The advertisement system, in which an advertiser selects a medium on which an advertisement of the advertiser is to be displayed, may include an advertisement cost calculating unit to calculate an advertisement cost for the advertisement of the advertiser based on a quality indicator of the selected medium.