Being a woman myself, I would find that very sweet. If you are at all worried about what she would spend it on, then maybe a gift card to a specific store could be the answer.
Just a thought.
"Be patient to persevere and wait for God to heal. Keep in mind that you are both imperfect people. Look to God as the source of all you want to see in your marriage and don't worry how it will happen...Leave it in His hands."
