Palm Tree Earrings

How do they do the earrings right and left to be the same? Looks like he is cut leaves flat or curved shell with a laser. Sometimes the shell is of different colors - how do they dye? I have a pair of earrings very light blue shiny shell which cost about $ 5 in the shape of kangaroos. At least one person per day used to stop in the street to ask where I am between them (Darwin) but the head and tail, broke one of them. I bought some shells that resemble the type of earrings were made from and you want to cut another kangaroo, but how? I looked in many books of crafts, but it must be a secret to Bali or Thailand. I have pairs of earrings in the shape of hearts of palm leaves, and stars. They are all white, except the kangaroos. They are all so beautiful you can almost see through them.

Assuming they do not like people with files to work 12 hours per day at $ 1 per day, the choice is computer-controlled abrasive water in which a stream of very fine water at very high pressure a tiny speck, he is driven around under the control of a computer program that can easily produce a mirror image. Works best on hard brittle materials.