I've seen similar "Wish" bracelets/necklaces, with beads, hearts or starts, they are a great idea for a "goody bag" treat for all ages! Wedding Wish Bracelet Wedding Favors. (Give your guests a knot as you tie the knot, too.
Definitely going to have my bridesmaids do this. Wouldn't it be fun if you used shades of lipstick in your wedding colors? Blue lip prints w. and then on a separate page the lip prints of the groomsmen, just for laughs
Have your wedding flowers made into a keepsake paperweight by the Flower Preservation Workshop company. While I normally think preserving wedding flowers is cheesy it might be ok to take one from the bouquet and have a paper weight made.