Mom and I worked on these about a month ago. We need to wrap the bouquet holder with ribbon or something else still but I still think they are worth sharing. I want to be able to keep my bouquet forever, so we went the silk flower route.
This is the picture I found on http://www.theknot.com/ to use as our inspiration, but I actually just used google images search with "sunflower bouquets" to find it. After finding this on the knot, I searched within for more sunflower ideas and I was very pleased.