I’ve made a set of mankas and one tarav ghoraj for Zach Ferrara.
They are made out of golden dragon snake Juma® blocs. Juma® – the name stands for independently developed and very modern processing material made from a mixture of various mineral base materials, bound in a resin component. Just like Elforyn® is Juma® excellently suited for the production of components and artistic objects such as knife handles, jewelry, eyeglass frames, or music instrument parts. “Produce your own custom items and delight in genuine one-of-a-kind pieces that no one else will be able to imitate.” the website says.
The material is indeed easy to work with and the result feels very natural and pleasant. The optical effect is stunning and has a nice impression of depth. It is definitely very suitable for decorations, mankas and possibly a tarav ghoraj. But I think it has too little resistance to wear to be suitable for a main ghoraj. Elforyn®, on the other hand, does well. Follow this link for Elforyn® examples.
In any case, it looks impressive on Zach’s beautiful sitar. The manka of the main string is made a little bigger than that of the other strings.