How awesome! I made bookmark favors too! I wish I had a picture to show. They match my invitations (which I also made). The invitations are cardstock with a gold deckle edge (from Target) and I designed Cinderella's castle on the computer and printed them on the invitation. Then I added a vellum overlay with the wording and attached it with a shimmery gold lace ribbon. They were beautiful - just what I imagined! The bookmarks have the castle printed on them and below it says "Thank you for sharing in a our happily ever after" with our names and the date.
It only stands to reason we should have bookmarks, since it seems like we are both "Belles."