On a recent trip with my friends, (called the Muddy Buddies - long story) I learned the art of popping rose petals. It was new to me, but did you know you can make a loud pop sound with them?
So of course, I had to teach my son how to do this too. It's a good little trick that can get old, if you practice around others too often (as I learned), but great fun.
So the first picture shows you the petal placement in your hand. And your other hand is cupped and comes down hard and forces air to make the popping sound.
( I don't think my son will ever be hired to be a hand model, but he has great other attributes)
Anyhow, I think you might want to try this trick. It really is a good one. Keep your rose petal holding hand slightly relaxed so there is a hole going down through the middle. And the top, cupped hand will create the force for the sound.
Hope I gave you something new to try when you see fallen petals from a bouquet. (Note: I don't suggest this during a wedding ;) ) but, aging floral arrangements are fair game.
Let me know how you do. It took me a bit to get it, but my son aced it on his first try.