and many used of rainbow flags... most not religious in origin either:
http://en.wikipedia.org/wiki/Rainbow_flagand the Gay Pride Flag:
Wikipedia LinkThe original gay-pride flag was hand-dyed by Gilbert Baker with his boyfriend Jomar Teng. It flew in the San Francisco Gay Freedom Day Parade on June 25, 1978. It has been suggested that Baker was inspired by Judy Garland's singing "Over The Rainbow". Another suggestion for how the rainbow flag originated is that at college campuses during the 1960s, some people demonstrated for world peace by carrying a Flag of the Races (also called the Flag of the Human Race) with five horizontal stripes (from top to bottom they were red, black, brown, yellow, and white). Gilbert Baker is said to have gotten the idea for the rainbow flag from this flag. The flag consisted of eight stripes; Baker assigned specific meaning to each of the colours:
hot pink: sexuality
red: life
orange: healing
yellow: sunlight
green: nature
turquoise: magic/art
indigo/blue: serenity/harmony
violet: spirit
Thirty volunteers hand-dyed and stitched the first two flags for the parade.
After the November 27, 1978, assassination of openly gay San Francisco City Supervisor Harvey Milk, demand for the rainbow flag greatly increased. To meet demand, the Paramount Flag Company began selling a version of the flag using stock rainbow fabric consisting of seven stripes of red, orange, yellow, green, turquoise, blue, and violet. As Baker ramped up production of his version of the flag, he too dropped the hot pink stripe because of the unavailability of hot-pink fabric. Also, San Francisco-based Paramount Flag Co. began selling a surplus stock of Rainbow Girls flags from its retail store on the southwest corner of Polk and Post, at which Gilbert Baker was an employee.