I used the basic plan but made a few changes. First I wanted a track layout that was screwed down. Easy to start playing for a two year old. And a reversible top that could be used for activities. The top therefor is one piece of ply. With a hole drilled in one end for inserting a finger to start the lift/flip. I used a little thinner ply than recommended to give a little lip around the trim to not allow the crayons and trains to roll on the floor. This also allows me to put two inserts on the plain side. I have a half chalkboard/ half whiteboard inserts. This gives it more flexibility. I also added a theater front to the mix that I store in the cavity of the box with the other top inserts. Finisher with white paint and minwax spray lacquer.
