This ad for Blatz beer has been circulating around the internet for some time. Often people who post these vintage ads never provide a source for them, so it's hard to know if they're real or fake. But in the case of this Blatz ad, I know it's real because I found the following discussion of it in the Church School Journal, 1917. Apparently it was controversial even in the early 20th century:
The whiskey men well know the value of childhood for the formation of permanent habits. Dr. C.T. Wilson says that the advertising of the liquor people has these aims: to secure the use of liquor in homes; to encourage drinking by women; to promote drinking by children; and to put the appetite for drink into unborn children by inducing expectant mothers to drink beer. He showed to a congressional committee an advertisement which read: "How mother and baby picked up: A case of good beer in your home means much to the young mother, and obviously baby partakes in the benefits"; also an advertisement recommending whiskey for delicate undeveloped children; also the picture of a nursing bottle filled with whiskey and taken from a small boy; also a picture of sixteen different hollow toys taken from school children. These hollow toys were all filled with sweet wine or whiskey, and had been given out by drink dealers.