Was online t'other day looking at the big three websites for an unrelated pattern, and I noticed some spirals...
Simplicity 2416 and Butterick 5042
They both look really cool! If I hadn't already made up my own I would totally buy one of these :-)
And a wannabe, McCalls 5056. It caught my eye but it's not a spiral at all. They've colored the illustration to look like it is! Isn't that silly?