Brian...contact the Association of Youth Museums...they meet annually.
Address: % Memphis Children's Museum, Jeanne Finan,Director, 2525 Central
Avenue, Memphis, TN 38104, FAX: 901 458-4033, Phone: 901 458 2678. they
also have a newsletter and their members (about 300) are very helpful
to new museums. For museum shopinformation, contact Museum Store Assoc.,
Beverly Barsook, Dir., One Cherry Center, #460, 501 S. Cherry St.,
Denver, CO 80222, Telephone: 303 329-6968. They too meet annually,
and have useful information for you.  Good luck!