The registry will list the chosen pattern, the number of place setting wanted, and typically any serving dishes requested.
If a full place setting costs more than you intend to spend, buy a serving piece instead.
These favors are easy to put near each place setting or to put in a basket next to the guest book.
For a festive table, use one clipped on the edge of a plate to hold an individual candle at each place setting.
Place a few palm tree votives on each table to add to the theme of the occasion, or put one at each place setting for guests to take home as a special memento of the day.