Researching beach wedding favors and beach birthdays

I have just found out that one of my high school best friends is engaged!! Another wedding is happening early next year and it is now back to researching beach wedding favors! The couple is very much into the beach - I don't think I can remember them telling me a time when they went on a holiday in the mountains I told her as much as I would like to help out in planning this now, I have my little girl's party in 7 weeks time. I now even am thinking of a beach themed kid's party - after all we have just bought two huge sacks full of sand!