Question
How do you make a bridal bouquet using a bravo, and how can I make sure that the roases in the bouquet will bloom/open up at the right time?

Answer
Hi Melissa.  Using a Bravo is similar to any other bridal bouquet form.  Allow it to soak in water until saturated.  Then I recommend to cover the top portion (the domed end) of the foam with a little sheet moss soaked in water.  You insert your flowers in the top portion and stems in the bottom portion, then wrap the middle with ribbon.

As for the roses, it's really going to depend heavily on the variety you choose.  Each variety has a name.  Some white roses don't open at all, while some open all the way up, exposing the center.  If you're looking for one that will open, you should talk to your local florist and see which varieties they recommend in the color you're looking for.  If it's a variety that opens quickly, all you'll need to do is keep them at room temperature for a day or two, and you'll have them in full bloom.