It's like Tangled! :D Floating lanterns will definitely light up your wedding or reception. Each guest writes a wish for the newlyweds on the lanterns and then, all together, they are released and light up the evening sky.
The Lantern Fest, a traveling festival that unites revelers with an evening of live music, dancing, marshmallow roasting, and setting the darkened sky aglow with floating luminaries carrying hundreds of hopes and dreams. I love this idea!