In the conference halls and the streets around them, the summits tend to be sheer pandemonium: activists arrive smeared in green paint or sweating behind furry polar bear suits; peasant women from the Andes in traditional bowler hats sing songs to Mother Earth when their leaders are on camera; celebrities bring their own circus — Robert Redford is expected to come to Paris and Thom Yorke is a conference regular. (theguardian.com)
In reading a few articles about its origin, I found that hammam bowls are traditional bowls used in Moroccan and Turkish bath houses. (casawatkinsliving.com)