When knitting you must sometimes set aside the stitches and then one uses stitch holders.
But if you’re making your own knitting needles, why not also your stitch holders? ;-)
Anyhow, I really liked the instruction and next time I need some, I will make them myself.
Links:
zakka life: How To Make Stitch Holders
Here at unikatissima: Self-made Crochet Hooks And Knitting Needles