Save the petals from bouquet put them inside a Christmas ornament. Makes great gift. ALso can use your wedding bouquet flowers to make First Christmas Together Ornament--use a paint pen to add names, date, etc
cute idea: write love letters to each other and place them into a box along with a bottle of wine. nail it shut at the wedding. when you have your first big fight, open it up, pour the wine, go to separate corners, read the love letters & remember.