If the hit looks rather messy, you can always stop the movement altogether for the hit by relaxing the joint, then letting it hit and extending it after.
This allows for a pushing action to be used, which can make uke fly all over the damn place.
Or try and get solid ghosts, so when you do hit it isn't messy, and since your body part is already in uke (lol), you can make the limbs fly away with the followthrough.