The weather is absolutely terrible and I was at a loose end, so I decided to have a go at making a number plate for one of my two project C5's. It look really good , the images below do not do it justice at all.
I made the plate from yellow vinyl for the background and black Schotchlite for the numbers and edging strip.
The three pictures below are to try and show how the numbers change as light shines on it, the top is with no flash the second one is with flash but not facing the plate, finally the last one is full on flash.
As you can see the Schotchlite reflects the light and make the numbers look white, its much better in real life.