White Knot

The White Knot is a symbol of support for same-sex marriage in the United States.
The White Knot combines two symbols of marriage, the color white and "tying the knot" to represent support for same-sex marriage. The White Knot has been worn publicly by many celebrities as a means of demonstrating solidarity with that cause.
The White Knot was created by Frank Voci in November 2008, in response to the passage of Proposition 8 in California and bans on same-sex marriage and denial of other civil rights for LGBT persons across the nation.