Michelle, I think the mineral oil on the ones you are going to sell is a hot tip. In fact, If I was you, and they had a tad of rust on them, I would wash them in hot soapy water with dawn dishwashing liquid, use an sos pad on them, do a pretty good job that way, and then put on nice mineral oil with a good clean rag. If you want to go all out, I would suggest after getting them out of the wash and rinse, put them in the oven and get them warm and then put the mineral oil on. Just to see what I mean, I suggest this, take a piece and wash it and rinse it and then put mineral oil on it. Then take a piece and do the same except put in the oven and get it nice and warm and then put the mineral oil on it, if its too hot to handle, lay it on something where it won't hurt anything and then brush the mineral oil on with a paint brush, a big one for big areas and a small one for the nooks and crannies of say a waffle iron, then compare the two and you will see a world of difference. Try it, you'll like it. ;) AND, when you take a picture of it for ebaby, it'll look like a million bucks.