I'm definitely planning on combining several of these ideas in order to still go along with my overall beach themed wedding by using seashells, but I also love the ones that have stargazer lilies. I'm planning on doing something very similar to number 11 & 12, only with seashells instead of rocks around the candles and it might be placed on top of a mirror instead of what's in the picture.
But one of my fiance's older sister told me that she has plenty of the round bubble shaped bowls, so I might alternate some tables with what I just mentioned and then other tables with the round bowls with seashells at the bottom and/or clear blue stones and then some water and a single floating stargazer lily. Might as well borrow everything that I can if she's got 'em!!
Also, I really wanna do the martini glass arrangements and probably put 2 or 3 of them spaced out at even intervals on our buffet table...I think that'll be cute, ya know...martini glasses near the food...it seems fitting to me at least lol!!