I love the look of variegated pittosporum. Here is a grower's bunch of variegated pittosporum. A medium sized wedding usually only needs a bunch or two if you are mixing it with other (cheaper) greenery such as leather leaf fern.
One stem is plenty for this pew marker tutorial. I am going to cut it into shorter pieces.
Use a sharp knife and BE CAREFUL. The stems are tough and rubbery. Cut at a slant to make insertion into the foam easier.
I inserted the first piece in the lower right, pushing upwards so it faces down.
I then inserted a large open faced piece a little off center to the right.
The variegated edges gives the greenery a unique look and helps define it in the overall design.