One of the more charming, although not necessarily sanitary, salesmen on a hot Cairo street is the Arasouz man. Arasouz is licorice or anise and they make a drink from it which is sold from an urn carried around on the salesman's hip. The origins of the block of ice are dubious and the cups are just rinsed out, so I have to admit that I've never tried it. To be honest, I hate anise anyway. But the chink, chinkety, chink of the metal cups being hit together as he walks down the street is always a welcome sound.