Photo of Star of David on a Deruta Plate is courtesy of "framois" who published it on Flickr and wrote to me:
I took this picture in Italy. The city of Deruta, Umbria is famous for handpainted ceramics. There are hundreds of artists and shops in the city with each designing their own patterns. We found only one shop that had this pattern. The shop owner was from Turkey where he obtained a degree in graphic design while his wife majored in interior design. The plate was originally made for one customer in San Francisco. The artist blends his own colors and may be the only Deruta artist to utilize the dark blue.