Dawn Treader - Make Your Own Wooden Model
This guy's website here sells templates for building your own movie-style Dawn Treader model from wooden pieces. Obviously it should be stressed here that he is selling the template plans only - you would have to buy your own wood sheet and physically cut all the wooden pieces yourself, which may require a fair bit of skill with a jigsaw, but it looks like a fairly nice little model to have.
There was also a more detailed pre-built wooden ship in the movie-style Dawn Treader which you could get a few years back:
Plus there is also this un-official Lego set which you can still get your hands on:
Of course you can also do what i did and make one yourself! (well, 50% at least)
That is really cool, but not being any good with a jigsaw*, I'll have to pass!
(*Jigsaw PUZZLES are a different matter )
"Now you are a lioness," said Aslan. "And now all Narnia will be renewed."