They do have an ironwood down there, but I don't know how much of it gets cut up into turning squares. The island isn't very big, and once you get out of the touristy areas, it quickly turns into poverish areas. There are some shops set up like local flea market types of things, so you might start there. They look like a bunch of scrap metal shacks all clustered together. They'll sell trinckets and local crafty things. Don't be in a hurry when you go to Jamaica. They are on island time, and things will get done when they are ready to get done. Nobody is in a hurry at all!
Brian