The construction warmer with whistle has been in Monte San Savino a moment's predominant ceramic work of many potters in the area since 1700. It was decorated with applications in relief and painted. The whistle placed on the handle or body warmer denote the popular character of the piece. These whistles made the useful object. There are several hypotheses on the use of the whistle: the people who came to the fair in November from the country would use it for company during the return trip, or would be used by the elderly that in case of necessity recalled people close to them.