My son and I have been getting into cast iron restoration as a hobby. So far we use every pan we've cleaned up and restored. Here is a skillet we picked up the other day at a local flea market. Here are the before and after cleaning. Just started the oven seasoning, but I thought I would show the original and cleaned up (with a little oil to keep it from rusting). I can't wait to get this seasoned and start cooking with it.