amy1979's Green wedding

I think that we have a bunch of themes going and I'm trying to tie it all together. I know what colors we're using and I know that I want to have calla lilies (at least for the bouquets) and maybe an arrangement on the guestbook table, bathrooms, etc. I'm thinking that for the centerpieces (and to save money) we'll use the beachy theme and incorporate sand, seashells, water, a few small flowers,and candles to create a formal, yet fun and elegant atmosphere. I also like the idea of using greenery, such as big plants and palm trees with small, white, lights. I've put up a couple looks I really like. Any ideas???