Upcycled Tin Can Vases tied with long skinny leaves make a simple, free table centrepiece. For outdoor use, so the cans don't rust, sit the flowers in water in a small glass jar inside the tin can vase.
The original suggestion is to do this for the kids' table. I say do it for ALL the tables! Paper is cheap and makes for easy cleanup, plus it would be fun to see what everyone draws! but for sure for kids table.