In medium bowl, place 1 1/2 cups of the powdered sugar. Add marshmallow creme; stir, pressing mixture against side of bowl until it clumps together. Knead on work surface, gradually adding remaining 1/2 cup powdered sugar until dough is smooth. Generously sprinkle powdered sugar on work surface and hands. Shape fondant into 12 balls (1 1/2 inches each) on work surface; flatten each to 5 1/2-inch circle.