Photo of Star of David in Peki'in synagogue is courtesy of Hayim Shtayer who shot it.
Copyright: Hayim Shtayer 2007.
I heard that there is also a Star of David from the Roman period inscribed on one of the stones that build this synagogue but haven't seen its picture yet:
The synagogue was built in 1873, on the ruins of an ancient synagogue.
This blog (by Zeev Barkan) is dedicated to the Star of David, its history, its various meanings and usages in different cultures. It includes thousands of pictures of Star of David, six-pointed stars, hexagrams, Solomon's Seals, Magen Davids and yellow badges,and served as a resource for three books and four art exhibitions.