Traditionally costumed water sellers are seen throughout Morocco. For a dirham or two water is poured from camel leather bags into brass or tin cups. Few tourists can resist photographing the colorfully clad men decked out in elaborate tasseled hats. You can hear the musical clinking of the brass and bells they wear.
Today water sellers make more money from vacationers who pay to photograph them than from peddling water.
In Marrakesh water sellers in Jemma el Fna are licensed and wander amongst the crowds, food stalls, snake charmers, story tellers, dancers, acrobats and fortune tellers. They are adept at getting the most from tourists. Indeed if one approaches you in the square don’t be surprised if two others appear to pose in a trio. All three will expect a tip.
Info from Escape From New York