Favors:
Personalized CDs are a great, inexpensive favor. You can buy CDs in bulk at most office supply stores and if you watch the Sunday ads you’ll often find great deals. You can fill them with songs that have meaning to you.
Bulk candy is also inexpensive and can be dressed up with bags, boxes, or ribbons. Or you can put seeds into a terra-cotta pot for people to plant when they get home. Or choose a locally produced item (for example sea salt for a beach location). Or go with caramel apples for a fall wedding. You can make them yourself. The same with chocolate, you can buy chocolate molds in most any shape you want and make them at home.