Hello Thomas- I just came across your post two years later, so you have probably already purchased the FirstCall labels and figured this all out. However, I did solve the issue of how to reuse the labels. Instead of using the sticky side of the label to attach it to the film canister, instead use a piece of double sided tape (the kind designed to be easily removable). Then you can use one label over and over again as they are made out of foil. I hope this helps!