I have to try this one… 
It might be doable with just Fusion 360 CAM too
Made a quick design in F360…
And the associated CAM
Male part, nothing too special here…
Female part - 3D adaptative cleaning with a straight bit
Female part - 3D ramp with a lollipop mill
The last operation is not perfectly adjusted yet, I need to work on this a little bit…
But you can see in simulation the ball correctly goes inside the dovetail
