I had a lady give me an entire pecan tree in Dickinson, TX after Hurricane Harvey came through last year and wiped it out. I cut a lot of bulges off the main trunk, of which she was calling burls, but I think technically they were just what I've seen called "limb burls". They all have bark inclusions, and some do actually have some awesome figuring to them, especially the larger pieces. Some of these would be really interesting stabilized and cast as a hybrid for various purposes. Here I have 6 listed, but I have quite a bit more. If you are interested in something else, let me know and I can add some more pictures of what I've got.