To edge these blankets I have done a row of sc around the edge and the a fan of 5dc in same sc skip 2sc sc in next sc repeat around edge join with a ss.
Very easy and very therapeutic.
To get the spaces even for the sc I used a skip stitch blade to cut a row of holes around the edged. This is the coolest blade which makes edging blankets really easy.
(((((Hugs)))))
Sandra