If you need an oversized chain for your costume, try this guide from Pretzl Cosplay!
How to make cool chains with Worbla scraps!
First I took some Worbla scraps and heated them up. I wore gloves and rolled the Worbla until it was a snake (#worblasnake). Then I cut it into the right size for my rings, put the two ends together and sculpted it until it was a full circle. Then I applied some paper tape so the Worbla couldn’t stick to itself on those points (thanks Galyopa for the idea!). Then I took a double layer of Worbla and cut a small stripe out of it. I used little parts of that stripe to create overlaps that connect the rings. And voila a Worbla chain is born!
While the costume isn’t finished yet, you can see the chain painted in this progress photo here: