This Blc. Sanyung Ruby 'Kuang Lung' in training. I learned this technique from a Taiwanese website. You use heavyweight sheet protectors (like for photos) and soft wire (used to hang drop-ceiling frames). Cut a "keyhole" for the lip and make clips out of the wire to hold the petals flat. I've tried this before with varying degrees of success. I think the trick is to catch the flowers as they open, so that they can grow into position and "set" within the framework you've created.
And the final product...
