Cosplay stands for “costume play”. Swift Stitch and Paige Robins (aka Cosplay Medic), who show up to cons armed with elaborate workshops on their backs to serve as resources for cosplayers who need an on-the-spot fix when something breaks. I spoke with folks like Albin Johnson, who founded the 501st Legion, and Adam Savage, who’s best known for his work on Mythbusters and for showing up in costume at conventions.