Unless you want to spend hours trying to sew your first cosplay, check out these websites where you can purchase complete costumes. Whether you need to purchase a costume, a new prop, or just to start talking to people with the same interests as you, these websites will help you get there. The first thing you notice on the EZCosplay website is how much variety there is. The first thing you need to do when planning an anime cosplay costume is research the characters.