Thirty-six gay and straight ally couples on Thursday exchanged vows in a temporary wedding chapel in Las Vegas to support the legalization of gay marriage in Nevada.

The Pop-Up Wedding Chapel at The Cosmopolitan hotel and casino hosted the event, which included couples saying their “I Do's” every 5 minutes for three hours.

The ceremonies are not legally binding but are meant to send a symbolic message of support.

Last week, the Nevada Senate approved a proposed constitutional amendment which seeks to legalize nuptials in the state by 2016. Nevada currently recognizes gay couples with domestic partnerships.

(Related: Nevada Senate approves resolution on gay marriage.)

The Cosmopolitan donated $50,000 to the Gay and Lesbian Community Center of Southern Nevada, known as The Center, which organized Thursday's event. The hotel's vice president of people, Daniel Espino, told the Las Vegas Review-Journal that the hotel has long supported the group's mission.

Candice Nichols, 59, senior director of programs and community partnerships at The Center, and her partner Suzanne Miller were among the gay couples to hold a commitment ceremony.

“Why are we less equal?” Nichols said.