That is a perfect way to make long lasting stencils. Thank you for sharing it with us. Let me share the way I make them and by no means am I trying to put down or upstage your way. It is truly awesome:worship:. I buy large diameter heat shrink tubes. The kind used on large electrical wire. The smallest I use is like 1/2" up to 1 1/2". For an example, say I wanted to copy a wiggle wart pattern. I slide the heat shrink over the wart. Heat it very slowly so I don't warp the lure. I use a heat gun for this. When the heat shrink is tightly conformed to the lure, I use an exacto knife and begin to cut out the pattern. Since I use transparent heat shrink, I can see the pattern through the heat shrink and just trace around it with the knife. Then, I cut down the bell and back and I have my two halves. I then put the two halves back on the lure and simply put a piece of masking tape down the belly or back to make a clam shell out of it. Usually, as the bait tapers toward the tail, there will be excess heat shrink. I take a pair of pliers and smash the excess together while it is hot to form a place to hold onto the stencil. The heat shrink forms around the bill and the hook eyes to give you perfect placement every time!