I've did some extensive searching already and I just can't find anything on achieving the cracked glass look on windshields. I have a dremel tool, do I draw the lines I want with a pencil and go over that whit a small drill bit. Or do I use smaller screw and lightly hit the plastic with a hammer. But the only problem I can think of doing it this way is the plastic will just snap in half since it won't crack like actual glass. Any tips will help thanks!!