I like the idea and it would make a great keep-sake that the recipient would doubtlessly use every year.
If I might make one small suggestion, consider the overall shape. Look at the profile picture of the tree and you'll see that it looks a bit chunky mid-height. Wooden Christmas tree shapes seem to work better when the outer line flows into a triangular shape. just as a natural Christmas tree does.
A good idea worth refining,
Les