bukys (04/30/83)
Found: the title of the short story about the creatures which begin life as safety pins, metamorphise into coat hangers, and become mature as bicycles. "Or All the Seas With Oysters" by Avram Davidson copyright (c) 1957 by Galaxy Publishing Corp. First published in .I Galaxy in .I Avram Davidson Collected Fantasies edited by John Silbersack Berkley edition/June 1982 ISBN 0-425-05081-5 The "other works by this author" page lists a book with the same title as the short story, so it is probably in that collection too.