Divide the cylinder into 4 like we did for the circle but use a pin to mark each of the 4 points.
Notice how I have the fabric on my machine - you sew inside the cylinder!
Turn through the opening we left in the lining.
Roll the seam open between your thumbs and fingers and then top-stitch - I chose to do mine about 1/4" from the edge but you can make it whatever distance you like.
Any of the large guide stitching that shows, can now easily be removed!
Well done!! Slip your container into the cover. You can see in the photo below that I then took a hair elastic and placed it around the top of the jar (I cheated and you can too!!) Spread the gathers till even and then trim with a ribbon or embellish till your hearts content!