For a craftsman-style table, I'd like to shorten the stubs to refine the look of the table.
Would driving one or two dowels (blue outline in image) across the tenon allow for a smaller, but equally strong, stub? I'm thinking that could increase the surface of grain that would need to fracture in order for the joint to fail.
If I inserted them along the wedge line, it could also provide a helpful guide when carving the mortise.
I haven't seen any furniture examples of this (yet).
edit Missing detail: the grain in the tenon runs horizontal (topleft-to-bottomright in the photo), perpendicular to the tusk.