Here are my two finished Boxes. Both in poplar, cherry stain and spray lacquer finish. My wife painted the hummingbird and flower with acrylic paint. I plan on felting the inside of the hummingbird box.
Aside from putting text on the inside of the lid, I have two other tricks I used on this project that might be helpful to some:
It's hard to clamp the two rings together without them sliding while putting the clamps on - my answer was to put glue on the two halves, and set them on the drill press, line them up and set a scrap of board slightly larger than the box on top and then use the drill press for a clamp, locking it into position. Yeah, they probably told me not to do that in shop class.
The other part was sanding the inside of the box. Again, I used my drill press, chucked in one of those 1 1/2" diameter drum sander on an arbor units, adjusted the table and locked the chuck so the sanding drum just cleared the bottom of the box. Turn it on slow speed and sand away, came out real smooth and straight.
I also had a problem setting up the second box. The board was only 7.2 inches so I was forced to scale the project or quit. Fortunately I was able to reset the board enough where it was a bit wider and the machine let me run it.