Retroreflectors

No, I don't mean "Old School" reflectors. What I mean is reflectors that redirect most of the light hitting them back to the source.
To the left is a picture of the TLEW emblem reflector that I am borrowing, as well as the two that I have made so far. The "candy stripes" are for use on the door of my truck, the DOT-style one is for use on either the bed or the bumper (thought I may end up attaching a couple of them directly to my rear bumper. they are, after all, the only "useful" bumper sticker in existance!
As with my PPE post, these magnets are intended both for my personal safety, and to make my truck look more "official." I think they do a good job at both.