many accesories shop does it. i am not living in KL so, cant give you the proper info.
anyway, there are 2 kinds of sandblasting, or some may mention windows etching. a very good way of preventing car theft.
1) by spraying (thus the name sandblasting)
2) using sticker type paint.
certain insurance company like MAA gives you free sandblasting when u purchase comprehensive motor coverage.
in melaka for example, we can find one old man doing mobile sandblasting. normally hangs out outside Proton showrooms. whenever a new car is registered, he will offer his service.