New American Dream Dictionary

by Joan Seaman - Tom Philbin
1. A return to infantile pleasures, getting attention.

2. “Things” are coming apart—often emotional, sometimes in life experi­ences (a rattling sound of a vehicle or machine).

3. The end or “demise” of a project or situation (as in “death rattle”).

4. Feel­ings of having had a close call, avoided danger—often emo­tional, frequently a bad situation (to see or hear a rattlesnake).

Ten Thousand Dream Interpretation

by Gustavus Hindman Miller
To dream of seeing a baby play with its rattle, omens peaceful contentment in the home, and enterprises will be honorable and full of gain.

To a young woman, it augurs an early marriage and tender cares of her own.

To give a baby a rattle, denotes unfortunate investments.

The Complete Guide to Interpreting Your Dreams

by Stearn Robinson - Tom Corbett
A baby’s rattle in a dream is an omen of contrary; you will find the satisfactions of maturity outweigh the responsibilities.

However, an oinoy- ing and/or unidemifiable rattle in a motor or anything else portends a number of small worries.