It's still not finished. But we are getting closer. We ended up using Elmer's Permanent Scrapbook tape to put the million little pieces of wood onto the mirror. And it worked awesome to hold everything in place. It has been hanging on the wall for several days now and nothing has fallen off yet. If we start losing pieces, we may have to go to glue. But this is working great so far.
We spray painted the wood white and then put the tape on the back side of each piece.
And here is our little "puzzle-project" all put together. We are still trying to decide on a frame for the border. Would love to hear any comments or suggestions. Christopher is off work for a couple of days this week so maybe we will have this little project finished in the couple of days!