I just go to office depot or staples and get the magnetic paper. You print out a sheet of labels and cut them to size. I usually scale them to 2.5x3.5 or so. Someone mentioned that you can get business card sized magnet paper that already has the cuts made. I tried that one time, but wasn't as happy with the results. My wife does scrapbooking as a hobby, so she has nice straight cutting tools.