bearlot, vinyl from a sign shop is exactly what I use. Used to work for a sign company and found that the 2mil premium vinyl used for lettering vehicles and making other signs is the exact same thing as what eze-eye uses to make their wraps. In fact I get mine made at the sign shop I used to work at. And it does just stick on.

Rangeball, to answer your question, I use it to see where I hit the deer after impact, (As it runs away) not to track the arrow in flight. It also makes it easier to see what kind of blood I am getting from the wound area since I shoot black and camo carbons , (IE heart, lung, kidney, and the dreaded gut shot.)