For before the ceremony - bride and groom reading letters written to each other - would make a really cute picture after side by side. -I'd write the letter the day on engagement then read it on the wedding day
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.