2 arm lengths for tail.

Base:
CO Desired width -5cm using long tail method.
Ch2, 4 Tb in end (mark 2nd tb as edge st), Tb in each st to other side. 5 th in starting loop to turn ( Mark 3rd tb as edge st) tnrw in other side of co chain and join to 1st tb as if it’s a stitch.
Use 7mm hook with tripled 8ply
Use 8mm hook with super chunky

Body:
Continue in desired stitch pattern until you reach the length you want.

I followed the pattern fairly closely…
Except I slipped the first st of every row to make it easier to pick up/sew up.
Instead of casting off & sewing up, I purled back 1/2 a row then grafted using Kitchener.