Alternatives to unity sand or candle...

Hi to all! I am getting married in June 2011 and I need some help. My FH and I had decided to have the unity sand ceremony instead of the candle because we are having an outside wedding and I am convinced that if the wind blew the flame out I would be heartbroken LOL. However, the sand ceremony has become so popiular that FH decided he wanted something more unique. I am tickled that he wants to have a say-so in some of the details so I feel like I should find some other options. but i have NONE! Any suggestions or advice would be greatly appreciated! Thanks!