First of all - I saw this somewhere, but I don't recall where. I'm certainly not the first person to think of this. I took fullsize round tins and photocopied them at 85% - 90% on my personal printer/scanner/fax that we most all have these days. Rectangular tins I just copied at full size. Then I simply placed the lid on the paper, tracing the part that I wanted as my new lid topper, and cut out the circle. You can see here everything from a round tin (Orlik Golden Sliced), large rectangle (Squadron Leader), Medium rectangle, (Old Dark Fired), small rectangle (Brown Flake), oversized rectangle (Solani Silver), and even an 8 oz bag (Stonehaven).