This is more just an idea for something you guys can keep your eyes out for at garage sales (old pie tins). I would really like to have a wall like this (old pie tins as frames) but have yet to run into any tins.
Non-Stick Quality Cake Baking Tin Tray Bakeware Pan Mould Wedding Party Bday
Mini Cakes baked in a Can - more for the idea than the actual recipe. That reminds me, I have to find that Tomato Soup Cake recipe. I just tastes like a spice cake with no hint of the secret ingredient that makes it moist.