The sleeves I have attached twice. The first time I crocheted but the purple dk just didnt look right against the wotsit wool. So I knited two square 14 by 13 in 25mm needles.
I stitched the sleeve seam up with the last of the hanging yarn. Then attached the whole sleeve using a 15mm crochet hook, the join looks like blanket stitch and this works as I wanted it to look hand made. ( Old'y world'y stiched on in the woods type thing)
The sleeve will grow over night as I used such large needle so It will need to hang for a while. Then I need to work out how to make the sleeve to hang down as if into a point. floaty would best describe.