Gabe Kidd, left, Sam Rush, center, and Levi Rush own Kelp and Cafe 64 in Old Orchard Beach, Maine. Three friends, two neighboring businesses and one very unlikely phone call brought a little West Coast energy to Old Orchard Beach. On a rainy summer morning, Kelp feels like a burst of color along Old Orchard Street. A mirrored disco wall catches the light. Plants climb above shelves filled with candles, jewelry, books and locally made goods. A hat embroidered with a lobster pr