Figured I would add a couple more, or "What I did over the Christmas holiday."
I used up the rest of the table I sacrificed for the project that started this thread, and built a hinged double sided chartboard:
It's sized to fit standard charts folded in quarters. Course can be laid out on the clear cover with grease pencil. Next step is to build a pair of hinged stowable knees in the cabin of my boat to create a small-space nav station.
Currently in progress- a triple jointed gooseneck mount for my chartplotter:
It's still a little rough around the edges, but overall I am happy with the concept