This is a great idea, stringing flower heads on fishing line. It looks like these are under a huppah, and real flowers. These were probably strung on-site by the florist then anchored with a bit of hot glue. If I were going to do exactly this, it would need to be done the day of. Gorgeous, but not practical at all for this girl, sans florist. I can't add even one thing that must be done by me on the day of.
I like this idea. I think I'm going to add it to my project list. Should I write a how-to, or is it pretty self-explanatory?