Hanky Panky’s thong is having quite the silver anniversary. In April, the underwear brand celebrated with a limited-edition box of thongs, and since then the specials have kept on coming. The company recently teamed with Anna Sui to create the “Anna-ver-Sui” collection of flower-printed lingerie (left); pieces range from $25-$97. (Olivia Palermo was among the stars who turned out to fete the collection recently in New York.) Also available: a line of silver thongs and camis (prices start at $28) and a $28 do-it-yourself kit which comes with one white thong and all the trimmings, like ribbons, bows and laces. Find all the goods Blake Lively and Cameron Diaz love on hankypanky.com.