Overwatch’s Sombra has a legendary Cyberspace skin in the game, and cosplayer Gladzy Kei replicated it. In the above video, she goes over how to create the shoulder pauldron portion of the costume using Worbla’s mesh art. The material becomes flexible at a low heat setting and can be bent into shape. Gladzy Kei goes over how to make a template from craft foam and cover it with Worbla and how to add in the details.
You can get another look at Gladzy Kei’s work in a teaser video for Sombra’s glove: