Although the Adenium ("Desert Rose") has all the looks of a succulent, with a water-reservoir trunk and root form, it is not grown the same way as a typical succulent.
I have only grown these plants for a couple of years and have never grafted any. I am sure someone can tell you about this procedure.
You might want to go into your "Profile" and update your public profile, giving your location, city/state/USDA zone. Knowing where you are can help when answering questions or giving advice.
drdawg (Dr. Kenneth Ramsey)
The reason it's so hard to lose weight when you get up in age is because your body and your fat have become good friends.