this is what i used my 'ruined' pantyhose for... just sew a long seam down the leg with tiny zigzag stitches so you can cut off the length you need for the next spool without it unraveling. I sew at least 2 tubes (one on each side of the leg before cutting apart. they will fit most spools if you make the tube approx 1.5", but of course you can adjust if you have gutterman little spools or super large spools from other brands....