Just got word that the very talented ship modeler Chuck Passaro, who in recent years has designed several kits for Model Shipways (five of them, I believe), has just launched a new online store where he is making available various ship modeling fittings and such. This is just now getting off the ground, so you can expect the selection will grow over time.
Right now, the store includes turned brass cannon barrels in three sizes, laser cut cannon carriages, very accurately scaled blocks (not like the misshapen ones included in kits), and will include cast resin figureheads, rigging line and more.
Very exciting to see this new stuff on the market! Check it out here: