Floss is perfect for sewing: cheap and tearproof. Also you can fit a needle in the container (which has also a little blade to cut the thread) for a perfect sewing kit
Amazon.com: Mini Skater Rainbow Color Embroidery Floss Sewing Threads Soft Cotton Cross Stitch Floss Threads for Art Crafts Projects Gift Bracelet Strings (50 Colors) : Arts, Crafts & Sewing
Stitch Tip: A Clean Start with Two Strands – NeedlenThread.com
How Many Strands Should I Use? – NeedlenThread.com
Sewing Pattern-mini Floss Holder PDF Pattern Stitching - Etsy
Hooked needle and dental floss used to mend denim jeans with a leather patch. | Leather patches, Hand sewing, Sewing
First time sewing with floss. : r/BattleJackets
10 Surprisingly Practical Uses For Floss
Dental Floss Gathering Stitches How To Sewing Tutorial - YouTube