What I've found works best is a fairly rigid, wide elastic strap that goes from the back of the head down to the wearers belt. As a bonus you can use the force keeping the head from rotating down to hold the tail belt up like a suspender.

Thanks!!!

I don't think so, I think it's just a matter of the servo trying to precisely dial into the commanded position, it's making small corrections and overshooting each time so there's an oscillation. It likely will drain the battery a little faster, could generate some excess heat. Not a major concern.

You might try detaching the servo (i.e. myservo.detach()) where myservo is whatever you named the servo, do when you're not commanding it to a different position, then reattach to move it again. I think if it's detached it will not try to hold it's position and that should stop the chattering.

Thanks! It is a gnoll, one of my D&D characters. This will be the third version, the original and second versions looked like this:

Very cool design! You might try modeling sets of tabs and a filleted channel in the printed parts, and then put 2mm holes through the tabs. Get a box of picture hanging nails from the hardware store, clip them to length with pliers (the metal is soft), put the wires behind the pin. That what I do.

That was one of the main advantages of the bowden cable drive version, it used adjustable bezels on the control assembly, and capstan pulleys on a single servo. Which has the advantage of not needing to sync two servos, but brought with it a lot of complexity and bulk.

Thanks! What is the name and brand of the faux fur? I figure I might order a few yards of it just to have on hand.

DM'ing for a little over a decade. Best advice is to keep homebrew to a minimum until you've got a feel for the power balance of the table. With that said, a fun homebrew resource is the The Net Libram d10,000 table of Random Magical Effects.

I'm leaning towards either Ulfric, Bleddyn, or Haskell. Once he arrives I'll make the final decision.