On Saturday at Dragonmeet I used the flat version - basically a flat deck plan, which I laminated - as a prop and people seemed to like it. Today I've done a bit of work on superstructure. Just some cutout boxes that can be stuck on top. So far I haven't tried a laminated version, I'm still messing around with getting the format right. I'll use a straw as the mast, make the chimney as a paper cylinder, some bench seats on the upper deck, etc.
karohemd posted some photos of Dragonmeet that include the flat version here
and this is where I've got to today:
At the moment the lifeboat is still "attached" to the stern of the flat deck plan, I'll move it onto the deck above the cabins.