When I made my Santa Jack, I made it almost bombproof, he has had some 30+ mph winds thrown at him and he took it with ease. I used a pvc skeleton with pvc cement on most joints except his arms and head. I wanted to be able to store him. I also am using a three point anchor system to the roof with straps that go under the shingles. I also like using silicone when I glue. It takes the cold weather better. You could try that to attach the head back. Good Luck.