Hi guys/gals,I am wondering what type of material to use to make 2 different things1) Translucent colored display covers like you would see on a stereo. In my case, 6 digit 7 segment displays. (see pic)(2) Light pipes. This is the plastic you see inside various electronics that are in all sorts of strange shapes. When an LED injects light into one end, it pipes through the plastic and you see the light on the other side with very little loss. With todays surface mount technology these things are a must. I want to make my own but I know the plastic is not just any plastic.