Hello. I was looking around for how to make Saber Sleeves when I stumbled upon this book
So I typed up a plan to make (edited) lantern sleeves (with added poof at the shoulder level).
These are a tutorial for editing your own sleeve pattern, so if you are using a pattern with a basic sleeve this should help you make saber sleeves out of them!
It is posted below in PDF.
Hope it helps someone out who is confused out there!