First I went to Joann's and stocked up on supplies:
3 packages (2 in each) of Sturdy Plastic Buttons
1 package of round black buttons
(these are bit bigger then the 10mm eyes I use, but they still look adorable and I'm so excited I found them)
You need to have your dragon all sewn up and ready for joints. Fill and close up the body and head, then set them aside. Place your buttons where you would the doll joints and secure with a safety pin through the button hole, do this for the legs and arms, then stuff and close.
Thread your doll sculpting needle with the waxed cord, make sure you have plenty, it's better to have to much then to little.You'll remove the safety pin as you push the needle through the button hole. Starting from left to right ( or whatever works best for you), go through the button hole on the first arm, then through the body. Next go through the other arm and back through the body. Be careful not to sew through the cord, this will weaken it.
When you reach the original arm go through the button hole so yous two ends are coming out opposite ends.
Pull the two ends so that the arms are snug against the body, but not to tight. Then double, triple, super duper knot you cord .
Leave some extra cord, the knot might slip and this will give it more wiggle room. Repeat this for the legs.
As for the tail and head, the best thing to do is pin them in a position you like and ladder stitch around to secure them. You might want to go twice around for the head.
I wish I had finished pictures for you, but I was far to inpatient and I rushed this sweet little dragon to her new mommy next door before I could. I hope this is a helpful option for your creature creating. Enjoy