Develop a good relationship with you retailer who would most likely be willing to help you with anything. Canada Soak your nuggets in rubbing alcohol and allow to dry before foiling. This creates a cleaner surface for the foil to adhere to and eliminates the need to grind which saves time. After foiling and burnishing your stained glass pieces use a small wallpaper seam roller on both sides of your piece to give it a nice flat edge. They're are available at hardware stores.
Mylar film is a translucent plastic.
There are several important benefits from using the mylar film. Third, the plastic pattern can be reused many, many times, saving you lots of money. The mylar takes well to pattern shears, and has enough weight so that it is not flimsy, and has substantial body to it. On small lead came projects, to bridge a gap in in the lead came joint, just cut a small piece of copper foil and place over the gap. Then solder as usual.