Please send old photos of people wearing fabulous fashions such as zoot suits, Hawaiian shirts, --ikis, dusters, muumuus and Nehru jackets, within the next week, to Way Back When, Sun Magazine, 501 N. Calvert St., Baltimore, Md. 21278. You must include caption information and your daytime phone number. Also, enclose a stamped, self-addressed envelope if you'd like your photo returned. If your photo is your only copy, please send a good-quality duplicate, not the original. No faxes or newspaper clippings, please.