Most Popular Marimekko For March 03/31/2009, ModMod, Leave a comment Marimekko shower curtains! The two items above, Marimekko Kaiku Shower Curtain (top) and Marimekko Unikko Shower Curtain (bottom) were the two most popular items purchased in March. I guess it’s bathroom redecorating season? Unikko photo. Kaiku photo. Last updated by ModMod on March 31, 2009.