Named for Three giant oaks that appeared to be one tree along the Michigan Central railroad, Three Oaks grew from a siding in the 1850's into a manufacturing center known for Featherbone, a stiffening material made of turkey feather quills that replaced the walrus stays in corsettes.  As featherbone was replaced by elastics, Three Oaks lapsed into a slumber only to awake in the later 1990's as a fledgling mecca for the arts.   Its tree lined streets and friendly shop keepers evoke memories of a more tranquill, orderly time and help explain why so many from Chicago, only 80 miles distant, make this either a weekend destination or second home.