This is a such a cute and great idea.
Marc Jacobs has personally invited the people of New York to support the HRC'a "New Yorkers for Marriage Equality Campaign".
The invitation is printed on the designer's Manhattan store window, with a springtime wedding going on in the background.
If you're not in New York you can still join the fight for equality by purchasing one of the t-shirts Marc designed for the organization.
[Image courtesy of the HRC.]