Here are some photos of paintings that depict the Virgin Mary either sharing or squirting her milk on others. For more on this motif, please see the entry "Prado, Pt III" dated October 26, 2005 and the comments it inspired.
As always, thanks to Fenway Partners, Inc. for the camera, although I'm sure they didn't expect it to be used for this.
Artist and painting, from top to bottom:
Pedro Machuca "Virgin with the Souls of Purgatory" 1517
Alonso Cano "The Miraculous Lactation of St. Bernard" 1650
Juan De Vivar "Appearance of the Virgin," 1545
Rubens "El nacimiento de la Vía Láctea"