I've made these in several sizes, from about 1/8" to 1/2". The clasps are forged hook-and-eye.
The smaller ones are rather elegant, but can't stand up to hard wear. The largest one is quite striking, long enough to be worn wrapped twice around the neck, and has a very 'snake-like' quality. It is pictured here adorned with a large eye bead that can be taken off when desired.
Smaller 'choker' length.