My fiance and I have been married before and don't need to do a wedding registry for items for our home. A friend of mine told me she went to a wedding where the couple didn't want gifts, but gave guests the contact information for their travel agent and said that they could give money to their honeymoon if they'd like. After the honeymoon, they send out a thank you card with a picture of them on their honeymoon and a nice hand written note on the back. I think this would be great, but is it tacky?