From Weddings.About.com

For a non-denominational ceremony, a secular ceremony, or a non-traditional ceremony, you can either borrow liberally from one of these traditions, or make up your own rules.

In all cases, the bride traditionally stands on the left, and the groom on the right. This dates back to medieval times when the groom might need to defend his bride in the middle of the ceremony, and wanted to leave his right hand, his sword hand, free. While few grooms even carry a sword anymore, the tradition has lasted.

Sweet, Kevin. You can carry your Lightsaber!

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