"Fritillus" - Dice-Cup or Amphora Stopper?

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From a remarkably well-preserved Roman villa at Vacone comes an exemplary specimen of so-called fritillus, alternatively known as an amphoriskos. These enigmatic objects have been extensively examined and identified in multiple ways: some have proposed they were used as dice-cups to prevent cheating during gaming, while others believe they served as amphora stoppers. The former theory is strongly supported by a burial discovered in Bevagna (Umbria) where a bone die was found inside the vessel at the time of its interment. According to another interpretation, these objects might have been employed as aids for removing cork or wood stoppers from containers using the mouth or serving as suction cups to seal contents with vacuum pressure for preservation. The Ship Museum in Pisa showcases them as both types, depending on their size. Furthermore, they have also been identified as unguentaria used for ointments and perfume or simple drinking vessels; however, given their pointed base, the latter interpretation seems improbable. This particular example measures approximately 11.5 cm in length with an opening averaging 1.5 cm wide. The narrowness of this opening obviously restricts the size of any dice that could be placed inside, suggesting another possible function for these enigmatic objects.