I just got my tags a few days ago. So I am very, very new to all of this. I got some of the round tags which I believe are the magnets but I’m not sure. It says it works on metal. What I want to know is, has anyone found a way to let’s say, put the magnet on to Will say a piece of card stock and then rubber band it around the can so you can reuse the tags when you’re done with that cam. Thank you.