Something New- Stitch Markers

I am not a knitter or crocheter…  but I am a huge admirer of the results.  I was told recently by a yarn maven who saw my wine glass charms that stitch markers are a thing.  I had this set of 4 amazing glass beads whose depth reminded me of the softness of yarn, so I thought I would give it a run and see how they sell.  If it turns out to be something of interest, I will design a bunch of others.   Let me know what you hate and what you love about them.