There are lots of options when it comes to giving gifts made of wood, especially if you are creative and can make something yourself.
A note about your hopes for a long lasting marriage would go perfectly with an ageless evergreen bonsai plant.
This candle not only is surrounded by real wood bark, it smell like pine.
Make sure that you know what your spouse likes and doesn't like furniture wise before making a purchase like this on your own!
If you can carve something meaningful yourself, that would be the best gift.
Even if you don't have a fireplace, you could build a small campfire outside for a fire lit, romantic evening.
There are many perfumes and colognes that have a woodsy fragrance.