Use an oversized urn with a sprawling palm tree. A 19th century Victorian Hall Tree in the right home would be beautiful and functional. An antique store would be the best place to look for a piece like this or better yet an auction or estate sale. Use a pair of corbels topped with marble or a pair of iron supports topped with glass for a shelf to hold a vase of flowers, keys and mail.
The foyer is the room that greets you as soon as you step through the front door. This is the first space and sometimes the only space guests see of your home, yet often foyers or entryways are neglected. This strikes me as odd. Somehow, I always think of the foyer as one of the most important rooms in the home. The foyer is usually where first impressions are made.