Then I made the mistake of looking at some of the sets for sale on eBay. There were all kinds of neat charms and elaborate beads and even photos. So I went to Michael's and browsed in the jewelry department. I still wanted something simple because I'd rather be spending my time on my socks. I was able to find 4 sets of charms that were small and very lightweight. With the addition of some jump rings, I now have a very large assortment of stitch markers for very little money and very little effort.
The biggest problem facing me on the next pair of socks will be choosing which markers to use!