Well, I don't know if you will be interested by my answer, but maybe others might be interested.
I'm not an expert of camel scrotum or camel penis, but as Rajesh said, it's just a story.
My answer is simple, the one to the left is Persian, the two to the right are Afghan / Pakistani.
They are simple copies of nice Persian models.
The Persian one has nice excised floral design; the rude Afghan ones have simple incised geometrical designs.
Mountain men tried to imitate Persian powder flasks, they just tried...
