Some researchers are claiming artifacts discovered in Bavaria are ancient baby bottle. They have very narrow spouts, residue confirmed to be ruminant milk, and were found in child graves.
From one of the project partners:
Bringing up babies in prehistory was not an easy task. We are interested in researching cultural practices of mothering, which had profound implications for the survival of babies. It is fascinating to be able to see, for the first time, which foods these vessels contained.