Found a piece of Mulberry in a brush pile last spring. Cut this piece of the tree out and sealed the ends. It had a branch growing out of it with a very close angle to the main branch. Main part of the tree was about 8 inches across and the branch about 2" across. As you can see the bark grew inside the main part of the tree. Not really sure it is much to look at but wanted to give it a go. Only finish so far is home brew danish oil. Don't believe I have any plans to fill the voids. About 6" across and 2.25 deep. Comments welcome.