You will need polymer clay, I use Fimo Soft. Scissors, chain, jump rings, pliers and a candle. I will use the candle to roll out the clay, I wish I had one of those glass rollers specially made for polymer clay, but the candle will do for now. Not pictured but needed are also a razor blade and a hole puncher.
Roll out the clay to thin plates.
Put them on the oven tray (on baking paper), make sure they lay flat on the surface.
Even out the edges with a razor blade. This is not needed, you could easily even out the edges with a scissor after baking, even it out before baking will not waste any clay though.
Bake the clay plates according to he instructions on the clay’s package.
Cut out shapes using a a scissor.
Punch small holes in each shape.
Add jump rings to the holes.
Attach the shapes to the chain.
Add as many as you want. It takes some time, but it looks really cool once the necklace is done!
I only added shapes to the lower part of the chain. Having the shapes all the way around your neck and on your skin can be a bit uncomfortable.