A good source for some nice looking wood can be found in your local cabinet shops. My experience has been to speak with the owner to see if they have any scrap pieces laying about. I tell them what I intend to do with the wood an they typically are very interested and give me way too much of what they have. Types range from Jatoba (Brazilian Cherry), Honduran Mahogany, Rosewood, Teak, Ipe and other types of hardwoods. I turn small wooden things pens, boxes, knobs etc. I just give them a few of these things and we are best friends. I just started trying to make a cannon, but a small cannon with a custom carriage as a gift would be the icing on the cake.