I decided to try to make plastic domes by gluing a cd-cover to the open end of a tin can and sucking out the air through a check valve, after which i heated the plastic with a heat gun.
My conclusion is that i need to use a larger diameter can and get better at heating evenly with the gun.
I plan on covering my non aerodynamic foglights with these.
Interesting, but I'm having a hard time visualizing them on a car. Got a pic of yours? My first thought is just to use the flat plastic piece and leave it at that.
Well that "tit" you see in the picture isn't the final version that goes on the car, i only plan on curving them a little, because the bumper is very strongly rounded at the fog lights and the damn things stick out a little bit, so that a flat piece won't fit.