Easter Monday calls (przywolywki) is a custom practised in Kujawy, in preparation for the traditional dousing of the girls with water (dyngus). The names of the local young girls for whom the young men have paid a ransom are called out in public and the men say how much water they will pour on the girls. Presently, the custom is practised only in Szymborze, formerly a village and today one of the districts of Inowroclaw. The Easter Monday calls survived in Szymborze thanks to the Bachelors' Club Association, which is officially registered, has its own seal, statute and 'minutes book'. The beginnings of this exceptional organisation which groups local bachelors go back to the times of Poland's partition. Earlier, more complex social functions of the custom of 'przywolywki' have disappeared while their entertainment functions have prevailed. Today 'przywolywki' have a negligible impact on the local life although they continue to be valued by the inhabitants of Szymborze as the expression of the local tradition, worthy of sustaining, and an opportunity for entertainment. The author presents transformations of the customs and the attitude of the inhabitants of Szymborze to it, both the old and young generations. The article was written on the basis of field research conducted in 2009-2010.