I have had this EXACT SAME thought in my head for the last week or so. I made venison burgers last year and this year with the waltons patty maker and thought, "Surely they have a smaller breakfast sausage patty insert (obviously they do not) so I was commissioning my neighbor to machine a stainless spacer to just sit inside the patty hole, but still wondering how to keep it secured in there…you have a great idea! Throw some pics up when you get it finished and in use! Would be nice to be able to thin it down a bit.