For MOH duty: Have each bridesmaid, mother, mother-in-law, aunts, etc... create a scrapbook page which includes a letter to the bride along with pictures. This is something she can read while she gets ready. The last page could be from the groom!!! Cute idea!
Maid of Honor: Buy a scrapbook with removable pages, and mail a page to all of the bachelorette's girlfriends. Ask everyone to decorate one side with photos of herself and/or the bride, funny quotes and memories, a letter, mementos of their friendship, etc. On the other side, have them write out their favorite recipe. Wrap it up and give it to her during the party.
Someone please do this! Have the mother of the bride, mother in law, bridesmaids, and friends of the bride write letters to the bride, then put them in a book so she can read them while getting ready the day of. The last page can be a letter from the groom.