Wikipedia
Sucellus
In Gallo-Roman religion, Sucellus or Sucellos was a deity depicted as carrying a large mallet (also described as a hammer) and also an olla and/or barrel. Originally a Celtic deity, his cult flourished not only among Gallo-Romans, but also to some extent among the neighbouring peoples of Raetia and Britain. He has been associated with agriculture and wine, particularly in the territory of the Aedui.