PolarKnits StitchDots is a similar accessory: stitch markers and stitch markers. You make also like Spark Exclusive JBW Stitch Markers - '15 January - As You Wish, which is another similar accessory: stitch markers.
You may enjoy taking a look at the The Fibre Company Terra Rosemont Cardigan, and The Fibre Company Terra Fable Cardigan kits all using Clover Stitch Marker Rings.
If you like Stitch Marker Rings, then you may be interested in the different ways we've used it. Visit our Beginner and Shawl corners to see some ideas.