do cosplayers make their own costumes

Not to worry, plenty of regional science fiction conventions play host to cosplayers and cosplay panels and discussions. You’ll even occasionally find cosplayers dressed up and wandering around town just for the heck of it, or at cosplay events at comic shops. Personally, I give huge thanks to the recent popularity of ComicCons and Marvel and DC Comics character movies that have come out in the last 10 years for making cosplay more popular.