Eggs of Things, Maxine W. Kumin and Anne Sexton (1963)

Full (out-of-print) book available at brain pickings:
http://www.brainpickings.org/index.php/2013/04/15/eggs-of-things-anne-sexton-childrens-book/

Eggs of Things was followed by More Eggs of Things in 1964, also sadly out-of-print but available in some public libraries.”