And speaking of Thor and its many amazing characters, how about dressing up in this Valkyrie costume from Katrin Frendreis, too? Or use this great costume guide for inspiration on DIYing your own version. Lucy Cook, from Devon, who is best known as MakeupMetamorphos across social media, cosplay costumes for men boasts over 929,000 followers on TikTok for her videos revealing how she transforms into popular fictional characters.