Spirale ashtrays, 1984 (1971) Stainless steel, 2 3/4 x 6 5/8 x 6 5/8" Manufactured and lent by Alessi Available from the MoMA Design Store   A clever redesign of an existing ashtray, Spirale is a steel bowl fitted with a steel spring that serves as a cigarette holder and which can be removed to easily clean the bowl.