Pendants

Magen David and other pendants in Tali Rabinovich's Tasha Gift Shop on 42 Frishman, Tel Aviv, Phone: 972-50-6565552. The tags are in Hebrew but the one above our national emblem looks superfluous, since every body knows what it is even without it...

Madonna

Picture of Madonna with Magen David is courtesy of monhsi from Flickr.
It seems that the Magen  David finds a mysterious way to infiltrate into the shows of Mega-Stars like Bono and Madonna. Madonna sang her song “Forbidden Love” on Confessions Tour Concert, in Tokyo, Japan, accompanied by two dancers: a Jewish Magen David was painted on one and a Muslim Star and Crescent on another.

Zipora Ne'eman Paper Cuts

Magen David on a Zion paper cut made by Zipora Ne'eman from The Israeli center of paper cuts Shderoth Halamed Hay 9,
Haifa, 32202 Israel
Tel: 972-4-8121036
cell: 972-52-2257676
The Hebrew letters are from Hatikvah, the national anthem of Israel:
Ayin l'tziyon tzofiyah = An eye still watches toward Zion
I got the following background material from Zipora Ne'eman:

Zipora Ne'eman is a second generation paper cutter, she learned the craft from her father in law the noted artist, Ya'akov Ne'eman.
Paper-cutting was an inexpensive art-no fancy materials were needed, just a scrap of paper, a pencil, a pair scissors or a knife. The tradition of Jewish paper-cutting can be traced as far back as the 14th century, and it continued to play a major cultural role in Jewish tradition through the 19th and early 20th centuries. The craft takes a simple art- cutting paper, and transforms it into an expression of devotion. The artist would take a line of text, from Psalms, for instance, and would strive to bring the imagery of the text alive in the paper-cut.
As time went on, paper-cutting became more esteemed, and soon paper-cut designs became connected with certain lifecycle events and holidays. Artists used paper-cutting to illustrate ketubot (marriage contracts), for example, and would create certain designs for the Jewish festivals of Sukkot and Shavuot. While Jewish literary tradition focused on the importance of words, the folk art tradition brought visual representations of words and ideas to life.
Artists often used paper-cutting to create a mizrach (which literally means "east"). The mizrach was a wall hanging for the most eastern wall of the Jewish home, reminding them which way to face while praying toward Jerusalem and directing the family's thoughts to that holy city during prayer. In Eastern Europe, the mizrach was frequently an object not just of devotion, but also of beauty. Elaborate mizrachim (plural of mizrach), created by paper-cutting techniques adorned many Jewish homes. Though the intention of the mizrach was to serve a simple, religious function, the art of the mizrach shows the high regard that was paid to good craftsmanship and beautiful aesthetic sense.
Another example of Jewish folk art, dating back to the Middle Ages, was the creation of the shivviti (meaning "awareness."). Similar to the mizrach in that its function was to focus attention, the shivviti would hang in the synagogue. Inspired by a line from Psalms, "Shivitti Adonai Lanegdi Tamid"-- I am ever aware of the Eternal One's presence"--the shivviti employed the Hebrew letters "yud, hay, vav, hay" which together symbolize God's name. It is interesting to note that while it was forbidden to try to utter the name of God, the shivviti used these letters in an artistic design to represent God's presence. The shivviti might include other Biblical phrases or lines from Psalms, but the focus of its design was always the letters "yud, hay, vav, hay." The shivviti, like the mizrach, was often created by paper-cutting.

Tarot Wands Hexagram

Wands arranged in the form of a Star of David on a Tarot Card I found at Tasha Gift Shop, Tali Rabinovich, 42 Frishman Tel Aviv Phone: 972-50-6565552. I say Star of David and not hexagram because Tali told me that there is a strong influence of Jewish mysticism on the Tarot system.

Tarot Cups Hexagram

These Tarot Cups, arranged in the shape of a six pointed star, were shown to me by Tali Rabinovich from Tasha Gift Shop on 42 Frishman Tel Aviv Phone: 972-50-6565552. I like the rich imagination of Tarot Card designers - they find new beautiful hexagrams in surprising places. 

Tarot Swords Hexagram

Picture of a Hexagram made from swords on a Tarot card was found for me by Tali Rabinovich from Tasha Gift Shop on 42 Frishman Tel Aviv Phone: 972-50-6565552 

Moloch

There are many writers on the WWW who claim that the Star of David is the star of Moloch, the idol mentioned in the Bible. E.g. Jim Searcy claims that

Moloch, Chiun and Remphan are all names for the star god, Saturn, whose symbol is a six-pointed star formed by two triangles. Saturn was the supreme god of the Chaldeans. The hexagram was brought to the Jewish people by Solomon when he turned to witchcraft and idolatry after his marriage to Pharaoh's daughter in 922B.C.

As far as I know there is no archaeological proof for these claims. In fact In Hebrew the six-pointed star is called Magen David which means: Shield of David. Judaism does not make any connection between the Israeli national emblem and stars. Star of David is the name of the hexagram in Non-Jewish cultures.
It seems to me that Non-Jews connect this shape to star worship (condemned in the Bible) only because they know it by its Non-Jewish name.