Basically: Tape together soda bottles. Tape pieces of cardboard at top and bottom. Cut batting to fit as in photo. I would spray adhesive these suckers on at this point. Then cut fabric ( 2 circles for top & bottom and a long piece for the side) a little larger than needed. Pin and sew almost all the way around. Fit on, then whipstitch the rest closed.. or if you’re really sewing friendly, add a zipper so you can wash the cover.

The pic shows that the original creator crocheted a cover – which is also an option! via

p.s. I’m not sure what the bottom pic is showing us… any ideas?