Locking Stitch Markers come in a package of 10. Knitters or crocheters use them to mark rows or stitches. They are very versatile little minders.
Soft Stitch Ring Markers by Clover come in a package with 20 small markers to fit 2mm-3.75mm/US 0-5 and 20 markers to fit 3.75mm-8mm/US5-11. They are flexible, plastic markers that are really easy to use when marking stitches
Also check out the pretty stitch markers from Cocoknits