Bookmarks make beautiful wedding favors!
I made bookmarks for our wedding favors using MS Publisher and copying the design of my invitations. I used a part of our vows as the wording with our name and date at the bottom, laminated them and added tassels to the top.
Bookmarks are becoming very popular for wedding favors that your guests will appreciate and keep for a long time.
You can even attach small magnets on the backs of them, which is what I did, so that your guests can keep them on the refrigerator or metal filing cabinet when they're not being used to hold a place in their favorite book.
In fact, bookmarks are probably one of the most customizable types of wedding favors to give to your guests, especially when you really want to say thank you but at the same time stick to your budget.