The Mega Bloks ships are great for miniatures gaming at ~28mm scale. I've converted several for use in my Pirates RPG games.
Dread Eye's Phantom is perfect for use with Razig & Co, but only with a bit of work with a Dremel and some putty.

Basically, you'll need to take a Dremel to the many, many pegs on the decks, to flatten them out, and then use some putty or air-dry clay to fill the resulting holes and blend in the textures. A nice feature of all the Mega Bloks toys is that you can fairly easily remove the masts for miniatures play, or pop them back in for looks (i.e., so you have something nice-looking at your table at the start of a game to draw interest from wandering players at a convention).
Here's a picture of the Dread Eye's Phantom minus all the masts (but with one extra mast base added in the center):

One thing that's definitely necessary when converting the Phantom is that you'll need to plank over the "sacrificial pit" in the cabin area, or you'll almost certainly have miniatures falling down there left and right. For my conversions, I also filed down the tabs that hold the aft deck in place, so I can more easily remove it to access the area underneath -- either for miniatures placement, or to give me some opportunities to change the look of the ship.
By comparison, "Captain Cutlass's Stormstalker" (the ORIGINAL one, that is), is an easier conversion, if you use a bit of mat board and some craft sticks (for planking) and raise up the deck area to level it out and make it flat for miniatures placement. If you can find "Admiral Scathe's Predator," that's practically the same base ship but with different colors and details.
The Mega Bloks "Pirates of the Caribbean" ships (NOT to be confused with the Lego ships that came out more recently) also work nicely, but unlike the Phantom and Stormstalker, they don't enjoy a single, solid base; if you're going to carry them around to games, you'll probably have to glue a few pieces permanently in place, lest they pop off at inopportune times. Technically, the "Black Pearl" in that line is far from proper scale, but this is "toy scale" we're talking about: The ship as a whole should be far larger in order to be realistic, but individual features (hatches, doors, the ship's wheel, etc.) work well next to 28-32mm figures (or, more specifically, my Reaper pirates, living or undead).
The newer "Captain Cutlass's Stormstalker" is actually the same basic ship as the "Pirates of the Caribbean Black Pearl" but with some altered ornamental details, rather than sticking to the original ship model. It's also usable for game play, but I'm still of the opinion that the original "Captain Cutlass's Stormstalker" is a more ideal toy for quick conversion for miniatures-gaming use.
I have a gallery of some photos from my Pirates RPG games, including some of the Bloks ships:
https://plus.google....966577107209361