Well. This is my first project. It's been started, but I've yet to finish it...
What I've done so far is order a free (I don't mean that I purposely searched for something free. It was just free) package that includes a magnet or a button (I'm not 100% sure which one it is, or if it's either of these at all) and it also includes what I got it for: a sticker that you put on a window that lets authorities know in an emergency that they should be looking for pets. Really, in an emergency, you are supposed to keep your pets with you, but this is definitely good for an extra precaution.
More on this subject later, and I hope to add new projects soon.