New Christmas dishes

Here's something I didn't need--new Christmas dishes. I bought a set about 10 years ago, and we use them once a year. But I was at the Discovery Shop and saw a hand painted set, priced separately. Well, I didn't want cups and bowls and tea pots and cookie jars, so 6 plates for $15 seemed a bargain. But first I looked for country of origin. I no longer buy anything made in China to use with food. There were no manufacturing marks at all. On the very last piece I turned over I found a sticker that read, "Diane's Delights, Columbus, OH," so I bought them. However, when I googled that name I found nothing, not in Columbus, not any place (for pottery and dishes). Any ideas? Each piece is slightly different, so they are hand painted. I think they are adorable.