Wow, never knew the term della Robbia. I have been to Williamsburg and seen the wreaths at Christmas. Thanks for going the extra mile with your detailed instructions and photos.
Another fruit they used was osage oranges. But they are VERY heavy. I don't think they could work in a centerpiece except resting on the table or directly on a sturdy base. They are a fun kind of lime green color and free if you have the trees nearby.
Hi Sally--Thanks for your comments and your mention of osage oranges. Takes me back to when I was a young boy, and the wickedly thorny trees were planted close together in rows to form living fences for cattle. A few survive to this day.
I may just try a della Robbia piece with osage oranges. I'll cut the oranges in half (you only see the front side anyhow) and can still use nails to affix them to the arrangement. Perhaps an understated piece in different shades of green...
You're welcome, Sonia. Whenever I write an article with instructions on how to do something, I always worry that I may not have been clear enough on this point or that. Thank you for the positive clarity feedback! :-)