edit. In the square bear screenies you have flowers out on the edge of the 3D boxes. Did you manage to make them move realisticly, and stay in place while the 3D box is doing it's magic?
I don't know if it's what he did, but you can make another 3D box and make all sides (including back) transparent, except for the front where you put the flower.
That does the trick for me at least.