I still haven't made all 18, but some are kind of cute and I thought you might like them too.
So today I offer you four cards in this series for your own enjoyment. You can click on the image and that will bring you to the original file on flickr.
The file is scanned at 300 dpi, which should be enough for a reasonable quality print. Just download it to your computer and choose some good sturdy paper, like maybe watercolor paper.
Print at 300dpi and the image should print at postcard size. They do make nice postcards, but also nice art prints. I often include some of them in art trades as a little extra and they are usually appreciated.
Wishing you all a wonderful artsy weekend!