Start your beach bash with a tangy take on the martini. Dip the glass rim in powdered ginger and raw turbinado sugar, then combine freshly squeezed blood-orange juice, triple sec, and vodka. Cocktail, by Cafiero Lussier, cafierolussier.com. Cocktail glass, from TriServe Party Rentals, triservepartyrentals.com. Letterpress napkin, from Lunalux Art & Design Workshop, lunalux.com.