It is called 'Spiral Bells' and is now available for purchase in my Etsy and Folksy shops.
Also for sale are these Spiral Bells earrings that I made during the tutorial:
SKY SPIRAL BELLS
Blue Topaz Sterling Silver Earrings
And so is this Spiral Bells pendant which is a variation of the design (also explained in the tutorial).
CRYSTAL SPIRAL BELL
Crystal Quartz Sterling Silver Pendant