Although there is no official symbol for gay marriage, when Miley Cyrus wanted to get a tattoo representing gay marriage, she had a equal sign ("=") tattooed on her ring finger. A similar symbol often seen at gay marriage rallies is the symbol for the Human Rights Campaign (HRC), which is a blue flag with a yellow equal sign which represents equality. Occasionally, you will see symbols composed of wedding rights colored in with the rainbow spectrum, since the gay pride flag is rainbow colored. You will also see permutations involving the scientific symbols for male and male (or female and female) worked into a representation of gold wedding bands. Also, a cake-topper with either two grooms or two brides would be instantly recognized as a symbol for gay marriage. Somewhat less easy to recognize would be the ADA-compliant silhouettes usually used on restroom doors (again male and male or female and female) holding hands.
UPDATE: Proponents of same-sex marriage seem to have settled on the white knot as a symbol of support for marriage equality. This is similar to the red one for HIV/AIDS awareness, the pink one for Breast cancer, etc.
There isn't any one standard gay marriage symbol.
The symbol of marriage is a ring as it stands for everlasting love xx
Ivory
pearl
The meaning of the infinity symbol is forever. The symbol it has no beginning and no end and is often used as a symbol of love and marriage.
the love knot or marriage knot
the love knot or marriage knot
Hera is the goddess of marriage, women, and birth, and the pomegranate is a symbol of marriage, marital love, and fruitfulness.
The universal symbol for marriage is all so called the TUFF (True Unity For Family) logo. This is the only registered symbol of its kind in the world. This very symbol also doubles as the only and first universal symbol for family invented by Louis Thomas the ("TUFF Guy") of Kankakee, Ill.
I think its oil
because she is the godess of marriage and hospitality
Wedding rings, marriage certificates
In Western culture, marriage is symbolized by wedding rings. It can also be symbolized by bells, hearts, and doves as well.