this is what the second picture was supposed to be. I'm not able to edit the pictures, sorry.

yes i had a collar like that- its from Kenya made in a similar way to the wide flat many-rowed collars on wire that they also do or did using colourful rocailles - and the discs are wood or plant stem slices, i believe.

These are collars worn by young girls of the Pokot Tribe, Kenya
Made from roots of Cyperus papyrus L. – Bulrush - Cyperaceae.
Said also made from the twigs of t'kaukau, a wild asparagus, but maybe that's Bulrush too?
Later on these girl's get glass beads by their male admirers for more elaborate collars.

I didn't expect such a fast and informative reply. thank you both
Judy

I totally agree with Hans. I will only add that girls make the wood or vegetal beads to demonstrate dexterity and patience. It is a traditional task that girls perform. Once they have made an ensemble, they soon graduate to wearing the more-colorful glass bead collars that Stefany mentions.

JDA.