Wood?
.....Wood?
There are
some Women that like "Morning Wood". ....
All kidding aside, If the 5 year thing is "Wood", You may want to look into
getting her a Bonsai Tree.
These things last forever and can be very beautiful. Maybe buy her the tree and a book on how to prune them. The two of you could use it as your center piece for your 50th anniversary in the year 2059.