So I thought I'd see if I could make a cheap, simple nursing necklace.
I went to Joanne's and found a large wooden ring and a set of smaller rings, for $1.50 each. I then bought a yard of nylon (silk looking) cord for $.79. I tied them all up, and was done!
Nothing against fancier and more pricey options, but I was very happy with this simple and cheap solution!