Centerpoint Studios Ikebana Vase - Mystic Each porcelain vase is designed by Kathie Kline and handcrafted by potters at Centerpoint Studios in Asheville, North Carolina. Includes a description of the Japanese origins of ikebana flower arranging and simple instructions for use. Natural gas-fired to 2300 degrees for strength and durability. Pin frogs (also known as kenzans) and cups also made in the USA.