I think that this is what you are looking for;
http://crafterwithoutacat.blogspot.c...-tutorial.html
I use 2 inch florists ribbon and you have much less problem with stray threads. Also use 3/4 inch sequin pins as they will hold well and not cause the ball to come apart from all the pins.
If you look for quilted ball Ornaments online, there are other tutes availiable also.
Have fun..
Faith