Bois D'Arc wood is the hardest wood in the USA and wonderful for most everything except carving after it has cured. It is also known a bo-dark, horse apple, hedge apple, and especially "THAT DARN TREE WITH ALL THE THORNS".
The first photos are my rendition of a 1930's coupe, something like the Lincoln Zephyr. The wood is so hard it will not accept stain so I burned the outside with an acetylene torch then polished it. It looks antique and is really shiny without any wax or varnish, etc. I later learned this is an old process and is called "Carbonizing".
The other photos are some I took at different times while making them. Some are just the cured wood, ready to be finished. The little animal is supposed to be a gecko.
I also make boomerangs and fly them, but that's another whole instructable. The carpenter's square is a wooden boomerang and flies well. They are all made of 1/4", 5 ply Baltic plywood, available on eBay and specialty wood dealers.