Sure, here you go. This is where I grafted a yellow orb plum scion (branch) onto my purple plum tree. This is called a bark graft, usually used to graft another variety onto a tree that’s getting a little old (like old apple trees). You cut off a large section of the trunk or a branch, then you use a knife to lift up the bark, and you take the end of the scion (with the bark removed from it) and stick it in there. Then you secure with grafting tape. The cambium layers of the scion and tree heal together, and the tree passes nutrients into the scion which grows into a new branch.