Half Moebius Torus
See this post
for more information.
Necklace and marbles are not included.
Be careful: if you use metal, you will have to force to make the marble enter the pendant (little flexibility) and it will be difficult to remove!
Check these two videos:
- in three materials
(Polished Strong and Flexible, Polished Metallic Plastic, Polished Bronze Steel)
- in Polished Gold Steel