Fortunately, the mesh already had the dog's jowls and mandible modeled decently enough, so I just put bones there and let blender auto weight everything. After that, it was all mucking around with Unity joints and physics.

Which, honestly, accounted for the bulk of the time that I put into the project. Practically all of the gameplay/main menu/splash screen/logo/sound stuff was put in over a one-nighter on the eve of the due date.

Now, the jelly-man skeleton thing took a while. I had to cut into a skeleton mesh that I pulled down from the asset store and pull apart submeshes for hands and feet and arms and legs. Fortunately, all the geometry was closed, I just had to separate stuff.

Oh, and I posted the project files.