1. Honeymoon Gift
If you know where she's planning on honeymooning, she'll love a helpful guidebook on the spot, or appropriate accessories. (beach blanket for a Carribean honeymoon, cashmere scarf for a ski-resort getaway, etc.) She won't have registered for it, but it will be tremendously helpful.

2. Lingerie
Every bride can use some reminders of her beauty. Give her some gorgeous lingerie that will help keep the spark alive after the wedding night. Those of you who are conservative can give a beautiful pegnoir set, while adventurous types can opt for skimpy or crotchless panties, latex bras, or, well, you get the picture!

3. Holiday Decorations
Today's brides register for furniture, electronics, and camping equipment, as well as the traditional kitchen and entertaining gear. Yet very few brides have the holiday decorations they'll need to start new traditions and recreate old traditions. Whether you give a holiday ornament with both of their names engraved on it, a beautiful menorah, or a cornucopia to create a Thanksgiving centerpiece, your gift will be put to use for years to come.

4. Engagement Memories
A newly married couple will have lots of documentation of the wedding day itself, yet few have documentation of planning the wedding. A bride will love a beautiful album with pictures of her shower, a journal for recording her thoughts during the process, or a scrapbook you've put together. Grooms, why not put together a scrapbook of your dating memories? To make it extra special, add tickets or gift certificates so that you can revisit one of the places that made such great memories. Source