If you're opting for a favor like almonds or candy, provide one per guest. Pricier items like votive candleholders can be distributed one per couple.
Add to the decor
If you're having a theme wedding, offer a favor that echoes the motif. Think strawberry-flavored lobster suckers for beachside bashes, or personalized corkscrews for winery weddings. Check out blissweddingmarket.com (vineyard fetes) and shellsaplenty.com (beach bashes) for favor-making materials.
Avoid setting scented favors on the table as they may interfere with the aromas of the dinner. Have them distributed by the waitstaff after dinner has been served.
If you don't fancy the idea of favors, you can make a donation to your favorite charity in your guests' names. For a list of global charities, check out careusa.org.
Celebrate your culture through your gifts. Think maracas or pewter chopsticks.