Hamsa

Hamsa with Star of David designed by Aviel Barklay ("soferet" from Flickr)

The Hamsa symbol appears frequently along with the Star of David, and I have the impression that the reason for that in the last ten years or so is commercial.

Fire Amulet

Picture of Fire Amulet Magen David is courtesy of Aviel Barclay who published it on Flickr.
Aviel Barclay has a unique profession - she is a soferet (ritual Hebrew scribe).
She lives in Vancouver, British Columbia, Canada and makes Judaica articles.
Aviel Barclay designed this amulet of the Hebrew holy name of the Lord inside David's Shield for Lag Baomer, Jewish holiday in which kids are making bonfires
and added a warning:

& remember, kids: only YOU can prevent forest fires…

Seagull Mandala

Seagull Mandala picture is Courtesy of Ofira Oriel, Israeli mandala painter and a fan of Jewish Stars

dinner is ready

Picture is courtesy of "leonapoleon" from Flickr who found this road sign above a stake house restaurant in south Tel Aviv - Israel, and published it under the title knife and fork

Episcopal Star

This picture of a hexagram on an Episcopal Church in Salisbury, Maryland is courtesy of Big Mike 42 who published it on Flickr under the title: St. Peter's Church
Big Mike 42 wrote to me that he doesn't know what this Star of David is doing in this place but he'll ask and update me if he gets an answer.

Psalms 121:5

Picture is courtesy of Ofira Oriel, Israeli Mandala painter who includes many Stars of David in her works. The Hebrew words are taken from Psalms 121:5

The LORD [is] thy keeper: the LORD [is] thy shade upon thy right hand.

Mamilla Mamluk Cemetery

A Solomon’s seal on a tombstone in old Mamilla, or Ma’man Allah(Sanctuary of God), a 13th century Mamluk Cemetery, which used to be, until 1948, Jerusalem’s main Muslim cemetery.

Picture is courtesy of sethfrantzman who published it on Flickr and asked:

what is the story behind the Star of David on the left hand side?

I guess the answer is connected to the Mamluks who used the hexagrams also on the walls of Jerusalem.