Rebecca Gardner may call Savannah and New York City home, but when she’s not traveling the world designing elegant interiors and offbeat events for her rolodex of notable clientele like Moda Operandi’s Lauren Santo Domingo, actress Candice Bergen, and designer Margherita Missoni, the Corpus Christi native hurries back to her home state as often as she can. “The more I go back, the more it feels really yummy to be with Texans,” she says.Gardner is the founder and creative director of Houses & Parties, a full-service events, interior design, and online retail site, where she offers a wide swath of entertaining “unnecessaries,” from garish gifts and fanciful party attire to new and vintage bar implements and tabletop treasures. Expect everything from tins of Russian Osetra…