from the above link
"The Dorset button has a long history, originating in the 18th century in Dorset, England. Originally, they were made on a disc cut from the horn of a Dorset Horn sheep, which was covered with needle-worked thread. Later, button makers began using metal rings as the basis for these buttons. We're going to make a simple form of Dorset button called a crosswheel, but there are lots of different styles, some of them involving intricate weaving. Once you have these basics down, experiment—the British Button Society offers some inspiration"
The basic concept is it is made from a plastic bone rings and either yarn or embroidery floss wrapped around the ring and made into a design. The design featured looks like a spoked wheel.
Here is tutorial on how to make Singleton buttons
The site indicates this is a type of dorset button. In looking it over the difference in the above is that the basic concept seems to be making a fabric yoyo around a plastic bone ring; will involve a lot of hand sewing and will be tedious and time consuming, but doable.
Instead of buying bone rings for either of the above though, think I will look around the house at what I can find to recycle that is similar.
POLYMER CLAY BUTTONS
The basic concept is rolling the clay flat, then using something small and circular (like a spool of thread) and to make it textured by using another button and pressing it into the clay or even making a design with a fork.
You can also make them with more than one color by rolling the center into a cane then wrapping another layer around it.
Next time I find Fimo or Sculpey clay on sale, I will buy some and give this a whirl.
I made a Singleton Dorset buttons to use for Craftster's April craft challenge and the buttons were used as the center to flowers on facinators