I would like to second Jack Flynn’s suggestion in #329’s Scale Mail. Including counters of wagons, caravans, etc would be great. It is his suggestion of a poster map for a ship that is the real gold to me. I have considered writing to request something along those lines recently, so I am glad to see I am not alone in wanting one. A ship is such a great adventure location, and one that can be used over and over again. To take Mr. Flynn’s idea a step further, why not a series of maps with above- and below-decks views of each of the ship types listed in the DMG? Maybe fold-up models of the smaller ships? How about a D&D minis tile of a small boat?
I seem to recall something about the return of Maps of Mystery to Dungeon. Perhaps some of those could be of the poster variety, scaled for table-top use? I love the maps of Greyhawk we have gotten in Dungeon, and I would love to see more little extras like that for in-game use. Well, I better stop for now, I can only get this worked up over an idea every 1d4 rounds.
-Carl