If one man's trash is another's treasure, then Flamingo Plaza is where the late Mel Fisher should have spent his time. There's more junk here than there is sand in the ocean. This L-shaped stripmall has thrift stores and junk shops selling stuff you never dreamed you needed or knew you wanted. One quick stop at a place called Red White & Blue yielded a miniature gumball machine; plaster molds for casting concrete statuary; a red bra-and-panties set with matching plumage; a contraption designed to decorate a mailbox with silk flowers; a three-foot-high purple toucan; and a Scooby-Doo lunchbox. At the neighboring Community Thrift Store we found enough furniture to outfit a dormitory, plus pinball machines, exercise bikes, old stoves, air conditioners, fridges, and even a waterbed. Save More, Inc., a few doors down, stocks new and used items including party supplies, tools, a life-size plastic yard tortoise, clothes, and toys. The scene is completed by a 99-cent store, a discount outlet for baby items, a beauty-supply store, and a Winn-Dixie. No need to bother with a detritus-seeking metal detector; the goods at these joints have been sorted, coded, and labeled to make the pickings easy.