I don't make postcards, though we usually buy a few to send when we go on holiday. My grand-daughters like to see where we have been. I do use them on cards sometimes, both images cut from the front and not written on postcard backs, ones that have postcard printed on them. I might distress them or add stamps, something like that. Here are a couple of examples, one with a distressed postcard and the other has a picture of the River Seine in Paris, cut from an old postcard.