I have told you about our musical garbage men, but did not realise they were on You Tube!  If you Google Puerto Limpio, you can wach and hear the garbage truck for Guayaquil.  It is not the same tune as is used here, but you can get the idea.   By contrast our local ice cream seller only has a bicycle, so is not capable of broadcasting.  Instead he has one of those old fashioned car hooters with a bulb you squeeze.  He only has 2 flavours, orange and coconut and either a cone or a tub is 50c.