Periwinkle Solid Periwinkle Party Supplies. Select from our wide assortment of Solid Color Partyware from Hallmark. This high quality tableware is available in 22 different colors in both plastic and paper. Mix and match colors to create a inviting atmosphere or coordinate with one of our many party themes. Either way, you will find our solid Periwinkle partyware at our discount prices of up to 50% off retail! This color has been discontinued by the manufacturer and the products listed are only available while supplies last.