The head MUST come off! That's the whole point of using the chest blocks, so the heads and arms can pop off to facilitate dressing the puppets. But Huck's neck tube was somehow jammed tightly in place, and I had to bust out the pliers to work it loose. They did some damage, as you can see. I don't expect the head to live much longer.
I can think of 2 options when it breaks - one involves drilling up into the head and epoxying new wires in place. The other involves making a silicone mold and casting a copy in lightweight resin, something I considered from the beginning.